Why Céline Dion's Stiff Person Syndrome Took 17 Years to Name

Céline Dion has revealed that she lived with stiff person syndrome for 17 years before a doctor put a name to it, and that for long stretches of that time she relied on Valium just to get through a performance. The admission appears in a Harper's Bazaar profile for the magazine's September issue, reported on 19 August, as she prepares to return to the stage in Paris next month.

The arithmetic is the part that stops you. Dion received her diagnosis in August 2022 and told the public that December. Count back 17 years and you land around 2005 — the era when she was headlining a nightly Las Vegas residency and selling records by the tens of millions. Nobody watching knew. Arguably, neither did she.

For a reader in Britain there's a second reason to pay attention. Valium is the brand name for diazepam, a drug that sits in an enormous number of UK medicine cabinets and gets prescribed for muscle spasm, anxiety and back pain every day. Dion's account is a case study in what happens when a short-term medicine quietly becomes a long-term crutch.

What she actually said this week

Dion told the magazine that the pain flared badly from 2020 onwards and that on the worst days she could barely walk. High doses of Valium were what made functioning possible. She now follows a heavy recovery routine built around medication, physiotherapy, vocal therapy and immunotherapy, plus 90-minute Pilates sessions three times a week and ballet classes twice a week, according to CBC's report on the same profile.

How stiff person syndrome hides in plain sight

The obvious question is how a woman with the world's best healthcare access went nearly two decades without an answer. The unglamorous truth is that the condition is so rare most doctors will never encounter it.

A condition most GPs never meet

The Brain Charity puts the prevalence at roughly one to two people per million. A typical UK GP list runs to a couple of thousand patients. On those odds, a family doctor could work an entire forty-year career and never see a single case, which is precisely why it rarely makes the shortlist when someone walks in complaining of stiffness.

Symptoms that look like a dozen other things

The hallmarks are muscle rigidity and painful spasms, often triggered by sudden noise or light. Those signs get filed under anxiety, back trouble, or simply overwork — an especially easy mistake for a performer who spends her life on planes and stages. Specialists now describe the illness as a spectrum, which suggests milder cases are being missed entirely.

Why 17 years is worse than the usual wait

The UK Rare Diseases Framework has cited an average of around four years to reach a final diagnosis for a rare condition. Dion's wait was roughly four times that. Her case is extreme, but the shape of it — years of tests, wrong labels, symptoms treated one at a time — is depressingly familiar to anyone in a rare disease support group.

From 2mg to 90mg: how the doses climbed

Dion has described the escalation before, in a People interview around the release of her 2024 documentary. She started at two milligrams, then 2.5, then three, then 15, then 50. The highest she took before going on stage was 90 milligrams. Each level worked for days or weeks, then stopped working, so the number went up again.

It could have been fatal. I did not understand that I could have gone to bed and stopped breathing.

What this means if you take diazepam

Nobody should read this and panic about a short course from their GP. UK prescribing practice deliberately keeps benzodiazepine courses brief — typically a fortnight to a month — because tolerance builds fast and dependence follows. Diazepam is a Class C controlled drug here for that reason. Never stop a long-running benzodiazepine abruptly; withdrawal can be dangerous and needs a supervised taper. If your dose has been creeping up, that is the conversation to book.

Can she really hold 26 nights in Paris?

That's the open question. Dion announced the residency at Paris La Défense Arena on her birthday in March, and around 480,000 seats sold out within hours. Sixteen autumn dates begin on 12 September, with further shows running to late May 2027. Face-value tickets ran from roughly €100 to €600 — about £85 to £510 — and Euronews reports projections of €300–500 million for the local economy.

There are no UK dates, so British fans are looking at a Eurostar and a hotel on top of the ticket. Before you commit, watch the first week of September closely: how many of those opening nights go ahead on schedule, and whether the setlist leans on the big belting numbers, will tell you far more about her recovery than any interview can.