In recovery room after last 3 abdominal surgeries/procedures, I have done full body pike situps (folding in half, knees to nose), requiring recovery room staff to hold me down. Was relieved after an hour or so by benadryl. Propofol was the drug potentially responsible for reaction. My breathing also becomes very shallow and slows to about 4 breaths per minute. Anyone else have similar reaction? Need more procedures - Crohn's.