Is this Parkinson's?
Almost certainly not, if the tremor comes on when you use your hands and disappears when they rest in your lap. Parkinson's does the opposite.
Parkinson's also brings slowness and stiffness, which essential tremor does not. This distinction can usually be settled in a single consultation.
How common is it?
Far more common than Parkinson's — roughly eight to ten times as common.
It is the commonest movement disorder there is, which is worth knowing when you are lying awake worrying about the alternative.
Why does a glass of wine stop it?
Alcohol temporarily reduces the tremor in most people with essential tremor, and it is a recognised diagnostic clue.
It is also a trap. The tremor rebounds worse, the amount needed rises, and self-medicating this way is a known route into dependence. Propranolol does the same job without that.
Will it get worse?
It progresses slowly, usually over decades. Many people manage for years before treatment is worth it.
It does not shorten life and it does not lead to Parkinson's.
Will my children get it?
Possibly. Around half of cases run in families, usually in a dominant pattern, which means roughly a one-in-two chance for each child.
Severity varies enormously between relatives, so an affected parent tells you little about how badly a child would be affected.
How well does propranolol work?
It roughly halves the tremor in about half to two-thirds of people. It does not abolish it.
Expecting complete disappearance leads to unnecessary disappointment with a treatment that is actually helping.
Can I take it only when I need it?
Yes, and many people prefer that. Taken an hour or so before a presentation, a meal out or a wedding, it works well.
Daily dosing suits people whose tremor affects them constantly; situational dosing suits everyone else.
Could my medication be causing it?
Quite possibly, and it is always worth checking. Salbutamol inhalers, too much levothyroxine, lithium, valproate, SSRIs and steroids can all do it.
Adjusting the culprit has resolved plenty of tremors entirely.
Do I need a brain scan?
Usually not. Essential tremor is a clinical diagnosis, and no scan confirms it.
A DaTscan is reserved for the minority of cases where the difference from Parkinson's genuinely cannot be settled by examination.
Do I have to tell the DVLA?
Not usually — essential tremor is not automatically notifiable.
You must tell them if it affects your ability to control a vehicle safely, and if you are unsure whether it does, that is worth a proper conversation.