I used to get very bad pains in the left side of the body. I felt like i was dying and it would last around 3 to 10 minutes if i remember correctly. It happened like 5 times. 2 times in the night and 3 times in the evening. It seemed to be after i drank a fizzy drink and when i stopped drinking fizzy drinks for abit it stopped? Do you drink much fizzy drinks? I didnt go the doctors as i said.. it seemed to vanished but if you dont drink fizzy drinks and its still bad i'd definitly go see a doctor. Good luck.