I have had severe pain in my lower abdomen only when I stand/walk for four years now.  Been to 8 doctors, had a ton of tests/surgeries, and no answer.  It subsides when I lay down.It is ruining my life and am on the verge of getting a wheelchair just so I can run errands. Thoughts?
Hi, It seems that you might be having lax abdominal muscles giving this problem as it increases intro abdominal pressure while standing but get relief while lying down. Observe that do you have any bulging in lower abdomen while standing or coughing. Consult surgeon and get examined. Ok and take care.