<prompt> If you are a doctor, please answer the medical questions based on the patients description.Im 36 weeks pregnant, and had a sharp muscle pain cramp in my upper abdomen. It was so painful, I couldnt stand up from the couch. I sat on the couch for a while and every time I tried to move or lay on my side it would hurt. Laying on my back was fine. The cramps lasted a few minutes, and was sore when I got up from the couch after about half an hour. There is no pain anymore and havnt experienced anymore cramps of this nature. It has been about 3 hours now. Baby seems to still be moving. Is there cause for concern?  <response>: HI. Thanks for your query and an elucidated history, although very atypical in nature. The probable cause of the pains you had at the 36 weeks of pregnancy in the upper abdomen is :The loaded colon goes up as there is no space for this to be in the normal position. The stomach rotates upwards a bit and causes the pain like you described. Do not worry. Take lots of fibers in the diet, you can use Dulcolax suppository to evacuate the colon, and you will be dined. Do not use cathartics as this is contraindicated in late pregnancy. 