question: I was taking wellbutrin 150mg and clinician had me stop and begin lexapro 10mg. on 7-2. I am up all night, cant sleep and my body twitches all night, also have a rapid heartbeat. Is this from stopping Wellbutrin or starting Lexapro? How can I get this to stop so I can sleep and not have body tremors? I am about 180 5 4 and 34 yrs old