How to get rid:
See a neurologist / neuropathologist.
Go to psychotherapy (if it's not a medical riddle), but psychosomatics. And try there to find more environmentally friendly ways of bodily response to a stressful situation.
I think the best way to find out what's wrong with you is to go for a consultation with a doctor, you never know what it has to do with. The main thing is not to start self-medication. This can have serious consequences.