My intesatinal health is prob not great. I used to drink way too much coca cola when i was younger. I would get these bowel movements and sharp pains in my stomach. I still get sharp pains in my stomach a day later if I drink any coca cola. I eat alright now, but i have a real hard time gaining any weight. I feel like there is deff something wrong with me cuz I eat like everyone else and dont gain any weight. I'm under weight now. Lately, prob past year or so, I have been having constipation when I lay down. I get gas cramps but can't pass the gas which is really frustrating when your trying to go to sleep. Went to the doctor he did a blood test and didn't help me at all, whats new lol? Maybe its irritable bowel syndrom or something similar. Maybe a defficiency in absorbtion of somthing is causing my poor weight gain. And that same somthing might be needed to maintain normal lips. I feel like there is an answer out there to this problem. If accutane which is like ODing on vitamin A I guess can cause exfoliative cheilitis than can't somthing get rid of it? exfoliative cheilitis is also common among HIV patients. This is like some puzzle we just got to put these peices together. Find out what links it all together, I just hope it is one simple cause thats easily curable in the end.