<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have a pain in my stomach on the left side about 3 inches left and 3 inches below my navel. About a week ago I did some ab workout, but I noticed the pain yesterday. It occurs on certain movements like when I turn over in bed. Is this just a muscle strain?  <response>: Hello! Welcome to Chat Doctor, Since you feel the pain only in certain movements, most likely it is caused from muscle strain. If the pain was a symptom of specific abdominal condition, you would feel it all the time not only in certain movements. If the pain doesnt seem to get better in 1 week or get worse you might need to consult a physician and get examined. Right now it doesnt seem something serious. Hope it helps. Kind Chat Doctor. 