I'm 16. My doctor recently diagnosed me with endometriosis, and linked my severe nausea and abdominal discomfort to it. But I'm pretty certain that's not all it is. Since December I've been having constant nausea. I've only had diahhrea 5 or so times the last two months. I was taken to the ER a month ago and given a pregnancy test, and that came back negative. They gave me Zofran for the nausea, but that only worked for a few days. I also took a HIDA scan, which came back negative. I've had an endoscopy of my intestines done, and that also came back fine, just mild gastritis, and the doctor basically told my mom it was stress and that it was in my head. It is NOT in my head, and I am not stressed (I stress eat, and I never feel like eating since this has started). I was tested for Celiac's Disease, gluten intolerance, and lactose intolerance, and all came back negative. My new doctor is now linking it to endometriosis, which my mother has, and put me on birth control. Instead of helping, I've only gotten worse. I have no appetite, my stomach is very tender to the touch (and hurts terribly if I push on it), I'm constantly nauseous, suffer fatigue, dizziness, bloating, and I'm constantly passing gas. Please help, I have no idea what this is and I've been homebound for two months!