Never happened to me, although I don't take any meds besides Atarax (Hydroxyzine)...
But you must tell your psychiatrist, perhaps some of the drugs you take have this kind of side effects...
*off topic* This remember me of a movie called Side Effects, where a woman apparently kills his boyfriend while sleep-walking.
But any way, see your psych!
Cheers,
Allie
Lifelies