I've been having a sharp pain in my stomach pretty much everytime I eat some kind of fatty food, that comes and goes, and makes it hard to even stand up, since the pain is so intense. I ususally throw up and have dirrehea afterwards too. Doctors haven't been able to figure out what it is, but I checked up gallbladder stones on the 'net, and it sounds exactly like it. I'm not overweight (well, maybe a few pounds), don't have diabetes, so I don't get why I'd get this at such a young age.