You said that you are already 10 lbs underweight. Do you have problems keeping weight on? If so, have you been tested for celiac disease? That is celiac symptom. You can be tested in 3 ways: genetic testing (blood work), tissue sample from the colon, or a saliva test. You may have to go to a holistic dr. for the saliva test. Insurance companies generally do not cover it. Mine cost $120, but it tested 13 different things. It was well worth the money. Good luck with whatever the results may turn out to be!