I am not pregnant, and I am not constipated. I am 26 and my stomach has been distended the past 2 weeks or more. It is not weight gain because its hard and tight. I look pregnant but i am not. I can hardly sleep at night with the worry that it is cancer of some sort. I read ibs can cause this but my bowel habits are fine and I don't think this would cause a bloated stomach for 2 weeks. By the way, this bloating is not going down what so ever.
Have you tried a food diary to see if a food is causing bloating? IBS can cause bloating but you don’t seem to be experiencing abdominal pain or bowel habit change. Maybe ask for a pelvic ultrasound to see if you have an ovarian cyst which can cause bloating. Are you experiencing disruption in your periods such as very light periods of heavy ones?