For the past 2 nights I've been unable to sleep due to my chest, shoulders, and head twitching/jerking. Not sure whats causing it but its pissin me off. I was on promethazine for bronchitus for about 6 days. Day I stopped taking it that night these fuckin twitches started. This will be the 2nd straight night I want be able to sleep because of this shit. Also just started taking percocets again after takin a year off opiates. So has anybody else had these twitches amd muscle spasms that keep them from sleeping??