When John Davidson was 10 years old, he experienced his first symptoms of Tourette syndrome – small facial tics and eye blinking.

By the time he was 13, the neurological condition was causing full-body movements so extreme he compares himself with the young heroine in horror film The Exorcist.

John tells Sky News: “There’s a scene where the girl’s on the bed and her whole body’s twitching about and screaming. That’s almost what it felt like. My tics became so extreme that I was hurting myself. I was pulling muscles. I was tired all the time.

“I would break down and cry so many times in a day because I was totally out of control. Something had completely taken over my mind and my body.”

Growing up in Galashiels in the Scottish Borders, John was repeatedly told his symptoms were in his head – or worse, intentional – when a chance meeting with a visiting junior doctor while in hospital led to a diagnosis.

Largely unheard of in the 1980s, today, high-profile figures including Scottish musician Lewis Capaldi and US star Billie Eilish have publicly spoken about living with Tourette’s.

Affecting more than 300,000 people in Britain, it’s more common than many think. One schoolchild in every hundred is estimated to be affected by the syndrome, according to NHS England.

While severity can range, there is currently no cure.

And while the University of Nottingham is working on a device which uses electrical pulses to suppress tic urges, the wristband – called Neupulse – is currently awaiting full medical approval.

‘Medication turned me into a zombie’

Treated with drugs as a child, John suffered devastating side-effects: “Anti-psychotic medications turned me into a zombie. I’ve got probably about a two-year period in my teens where I have no real proper memories.”

Frustrated by the lack of support available to him growing up, John is now a Tourette syndrome campaigner, recognised for his work with an MBE.

But even that came with challenges unique to his condition. At the 2019 ceremony at Holyrood Palace, when collecting his award, John shouted “F*** the Queen” at Elizabeth II.

He says: “It was horrific for me. It was like the last thing I ever wanted to have to shout. And I think that’s the nature of the coprolalia, part of the condition, where it’s the worst possible thing you could say in that situation.”

Affecting a minority of the Tourette’s population, coprolalia is the involuntary utterance of socially inappropriate words or phrases.

While less common, it’s the feature of Tourette’s most often portrayed in the media.

John goes on: “It came as much of a shock to me as to everyone else, you know? But I’m the one in the moment having to deal with those emotions and feelings of wanting the ground to swallow me up. [Thinking] I don’t want to be here any more.”

‘Living with it is absolutely awful’

Now, in a bid to tackle the stereotype, a film is being made about John’s life based on his 2025 memoir, with Game Of Thrones star Robert Aramayo playing the lead role.

No stranger to media exposure himself, John has appeared in numerous documentaries over the years, following on from the groundbreaking 1989 documentary about his life, John’s Not Mad. But it hasn’t always been a positive experience.

John says: “Every time they make a documentary, they make such a thing about the swearing part, which then stigmatises the condition because people are then left to assume that everyone with Tourette’s swears and shouts obscenities.”

In reality, coprolalia is not typical of the condition and only affects around one in 10 people with Tourette’s.

John acknowledges there is a comedic element to this: “When people think of uncontrollably swearing like that, it’s funny. ‘Oh my God’, you know, ‘shock, horror’. But for the one living with it, it’s absolutely awful.”

‘Let’s have sex!’

It’s a sentiment the film’s director echoes.

Kirk Jones first met John in 2022. Meeting him at his house to discuss the potential of making the film, John opened the door and, after inviting him in, shouted in his face: “Let’s have sex!”

His first introduction to John’s verbal ticks, the director admits it was a “steep learning curve”.

He tells Sky News: “There’s something about Tourette’s, which I don’t think has made it a very friendly or accessible condition. I think that’s down to the fact that people who have coprolalia come across as being aggressive or argumentative or difficult or upsetting people, and I think that’s unfair. They need as much support as anyone else.”

The director says it took him some time to gain John’s trust, showing he wanted to do more than just revisit tired stereotypes.

He says: “The Tourette’s community had been kind of abused in the past. They’ve been invited to appear on TV shows or radio or be in newspaper articles, under the guise of helping people to understand Tourette’s more. But what the TV channel or the radio show really wanted was just a cheap laugh.

“When I first met John and started talking about the idea of the film, he was understandably suspicious.”

Handing over some creative control, John is also an executive producer on the film.

‘When you laugh, it breaks the ice’

Now, at 54, and having lived with the condition for over 40 years, John believes people are becoming more tolerant of Tourette’s, but would love to see further acceptance.

“It’s about not being shocked. It’s not about being dead serious with a straight face. Feel free to laugh, because when you laugh, it breaks the ice.

“I wish people had the confidence to approach people with Tourette’s and just deal with it as if it was an everyday thing.”

The director, too, hopes the film will have a real-world impact and open people’s eyes to the reality of the condition.

He says: “I hope this film can play a small part in starting to refocus people’s attention on helping and supporting people rather than just laughing or mocking.”

I Swear is in UK and Irish cinemas from Friday 10 October.

Anyone looking for support or information about Tourette syndrome can access resources at Tourettes Action or Tourette Scotland for those living in Scotland.

Dolly Parton has declared she “ain’t dead yet” after her sister raised concerns about the singer’s health by asking people to pray for her.

“There are just a lot of rumours flying around. But I figured if you heard it from me, you’d know that I was okay,” the 79-year-old singer said in a new two-minute video posted on social media.

“I’m not ready to die yet. I don’t think God is through with me. And I ain’t done working,” she added.

In the footage, captioned “I ain’t dead yet!”, the 9 to 5 singer is seen on a set speaking directly to the camera.

On Tuesday, a Facebook post shared by her sister Freida Parton escalated concerns around Parton’s health when she wrote that she had been “up all night praying for my sister, Dolly”.

Hours later, Freida Parton followed up with a clarification. “I want to clear something up. I didn’t mean to scare anyone or make it sound so serious when asking for prayers for Dolly,” she wrote.

“She’s been a little under the weather, and I simply asked for prayers because I believe so strongly in the power of prayer.”

Last month, Parton postponed her first Las Vegas residency in 32 years, citing “health challenges”.

She was scheduled to perform six shows at The Colosseum at Caesars Palace in December. The dates have been moved to next September

Parton offered her own clarification about her health condition in Wednesday’s video.

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“Everyone thinks that I am sicker than I am. Do I look sick to you? I’m working hard here! Anyway, I wanted to put everybody’s mind at ease, those of you who seem to be real concerned, which I appreciate,” she continued.

“And I appreciate your prayers because I’m a person of faith. I can always use the prayers for anything and everything.”

She also referenced her late husband of nearly 60 years Carl Dean who died earlier this year at the age of 82.

“I want you to know that I’m OK. I’ve got some problems as I’ve mentioned. Back when my husband Carl was very sick, that was for a long time, and then when he passed, I didn’t take care of myself. So I let a lot of things go that I should’ve been taking care of,” she said.

“So anyway, when I got around to it, the doctor said: ‘We need to take care of this. We need to take care of that.’ Nothing major, but I did have to cancel some things so I could be closer to home, closer to Vanderbilt, where I’m kind of having a few treatments here and there.”

And in true Parton fashion, she ended with a joke: “I wanted you to know that I’m not dying”.

Dolly Parton’s sister has said that the country singer is “going to be just fine” after worrying fans by asking for prayers.

Freida Parton had asked people for prayers for the Jolene and I Will Always Love You singer on Tuesday.

“Last night, I was up all night praying for my sister, Dolly. Many of you know she hasn’t been feeling her best lately,” Ms Parton wrote in a Facebook post.

“I truly believe in the power of prayer, and I have been [led] to ask all of the world that loves her to be prayer warriors and pray with me.

“She’s strong, she’s loved, and with all the prayers being lifted for her, I know in my heart she’s going to be just fine. Godspeed, my sissy Dolly. We all love you!”

After shocked fans took to social media expressing worry about Parton’s health, her sister said in a second post on Wednesday: “I want to clear something up. I didn’t mean to scare anyone or make it sound so serious when asking for prayers for Dolly.

“She’s been a little under the weather, and I simply asked for prayers because I believe so strongly in the power of prayer. It was nothing more than a little sister asking for prayers for her big sister.”

It comes after Parton announced in September that she had to postpone her upcoming Las Vegas residency over “health challenges”.

“As many of you know, I have been dealing with some health challenges, and my doctors tell me that I must have a few procedures,” the singer said at the time.

“As I joked with them, it must be time for my 100,000-mile check-up, although it’s not the usual trip to see my plastic surgeon!”

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Parton said she was postponing the shows because she is “not going to be able to rehearse and put together the show that I want you to see. You pay good money to see me perform, and I want to be at my best for you”.

The country star was set to perform six shows at Caesars Palace in December, but her performance dates have been moved to September 2026.

“Don’t worry about me quittin’ the business because God hasn’t said anything about stopping yet,” Parton said as she announced the postponement of her shows. “But I believe he is telling me to slow down right now so I can be ready for more big adventures with all of you.”