I am a 30 year old female. In February I came down with diarrhea, nausea and an almost complete and sudden loss of appetite. I also sometimes had some upper abdominal discomfort although this was subtle and not painful. I was very frightened because this was so foreign to me. Usually I have a terrific appetite, a quick metabolism and I am naturally underweight. The symptoms persisted week and week. Some weeks I thought I was getting better only to feel worse again the next week. I went to my GP several times and underwent several blood test that all came back normal. Since symptoms weren't improving and almost three months had gone by, I went to see a gastroenterologist who recommended that I have an endoscopy and colonoscopy. Again I was mortified by the thought of having to go through these seemingly invasive procedures but decided that the best course of action was to listen to the specialist. I was pleasantly surprised by how simple the procedures were. The prep went by quickly and the worse part was worrying about what they would find. The colonoscopy and endoscopy itself were non-issues and were done before I knew it with no pain or discomfort during or afterwards. I was also extremely relieved to find out that everything was normal! The problem persisted for almost four months in total and was quite unbearable and frustrating at times. I even lost 10 pounds! However in the end, the symptoms went away and I was able to resume a normal appetite again. My symptoms sometimes reoccur for a few days when I am stressed but otherwise are controlled. A few things that helped me cope during my bad stomach periods: Ensure (strawberry), chamomile tea, jelly beans, clear soup, trying not to worry, and time! I just wanted to share my story with others that may be experiencing similar symptoms. I know how unpleasant and worrisome it can be! However at the end of the day, I finally felt better and now everything is back to normal! Hurray!! Good luck to all those who are experiencing the same thing!