Cause of dizziness and paroxysm?

So last night, i got up to be in motion to the loo and suddenly felt really dizzy and fainted and blacked out for a few seconds. after i sort of remember shaking very badly - i just remember my come first knocking against the floor for a bit (like a seizure)
When it stopped i was still light-headed for a bit. When it wore off,
my hand were cold, and tingly, and i was sweating like crazy!

i'm 19 and not epileptic.

I have an upset stomach from too much herbal tea (cinnamon) so I'm not sure if it was that.

I'm on birth control and efexor XR.

Thanks for any help.
Answers:
Classic syncopal episode.

You did NOT have a fit.
This is likely to be a simple faint. During sleep your blood pools in your vein due to the lack of movement, and blood pressure falls in the early hours contained by any case. When you got up it is likely that not adequate blood was available to be pumped to your brain and you passed out. This is called postural hypotension.

the shaking symptoms you describe are not uncommon during seizure from faint and all the other symptoms are fairly standard. Cold hand fit with blood being redirected to your body core, and sweating is usual during syncope and probably exacerbated by you individual on effexor which has sweating as a side effect. If it was a seizure you would be extremely unlikely to hold any memory of it.

Having said that, its probably a good idea to consult a doctor. Epilepsy can start at any time of life. Even if an EEG is usual you may be anaemic which could lead to faints.

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