Ambee102

Can doxycycline give you digestive problems? I started taking it in January for an infection. I was on it 2x a day. In June I noticed I had lost like 5 pounds. I am still loosing. I was 134 now I am 113. I was checked for thyroid, diabetes, and anemia. They all came back fine. Doc thought thyroid but test came back low normal so she said no problem there. Doc said she could not find anything wrong with me according to my blood test. I stopped the doxycycline because I was having stomach aches and pains. After I stopped taking the doxy i have been getting diarrhea once a week and I then get constipated with no pain or discomfort for 3-4 days between the diarrhea. Before I stopped taking it I was extremely tired and loosing weight with a lot of burping and gas. Also had chest palpatations and itchy skin. I asked the doc if she thought it could be a gi or digestive prob from the doxy. She said she hopes so. She thinks I'll continue to loose weight untill I get it fixed. I feel like I am going crazy with all the test and doc visits. She is sending me to a gi doc. Does this sound more digestive related? What could be wrong with me? What should I expect from the gi doc? A side note I have a lump in my right under arm that I have had a mammogram and ultrasound on. Was normal but doc wants me to go back to general surgeon and have it looked at more.