Shakes?

Last night, about midnight, I found myself shaking uncontrollably. I've got no idea what caused it. Must have gone on for about 15 minutes.

Just wondering if anyone has any idea what might have caused it?

Parkinsons Disease. Probably.

ahh, hands, okay. That's more specific

Well, the thing is with hands, sometimes they just *do* that. Mostly it's a stress/adrenaline or tiredness thing, but what's VERY common, is a thyroid problem.

Now I'm not saying you ought to be really concerned, but if it does happen again, I suggest you go to the doctor and explain the hand tremors, because they're symptoms of thyroid disorders such as hyperthyroidism. [which is not the end of the world, very common, and treatable, so no worries]

I very very much doubt this will be hyperthroydism. Do you eat alot and still find you are losing weight? Do you find you get heart palpatations (can feel your heart racing in your chest). Do you have a goitre - a kind of bulge on your neck. How about bulging eyes?
All hyperthryoidism signs.
What i would put money on you having is simple essential tremor.
tremors usually affect old people, but can appear at any age, essential tremor often appearing at a relatively young age. It is often heriditary, so ask your parents if anyone else in the family has a slight tremor.
ET usually affects the hands, but it may also affect the head and neck (causing shaking), face, jaw, tongue, voice (causing a shaking or quivering sound), the trunk and, rarely, the legs and feet. The tremor may be a rhythmic "back-and-forth" or "to-and-fro" movement produced by involuntary (unintentional) contractions of the muscle. Severity of the tremors can vary greatly from hour to hour and day to day.

Some people experience tremor only in certain positions – this is called postural tremor. Tremor that worsens while writing or eating is called kinetic or action-specific tremor. Most people with ET have both postural and kinetic tremor.

Go to your doctors if you find it happens regulary, and explain the problem.
So long as you aren't asthmatic, he may prescribe you some beta blockers.

However, you might want to sit down and really think if there is anything really bothering you or making you anxious. Shaking is a peripheral sign of anxiety, and although beta blockers would help this, they won't cure the central cause.
HTH

Are you overweight? I believe it can also be caused by fat lying on/interfering with nerves etc...

Did you have trouble breathing, or did you feel light-headed/faint?

Yeah sometimes I get them when I am really anxious or upset. It's really weird!

Edit: Not regularly but it's happened twice now.