Hi. I had a colonoscopy 3 years ago when I turned 50. Everything came back negative but I was having a lot of digestive problems. The specialist said "go gluten free". Now 31/2 years later, my symptoms have improved but I still have diarrhea at times and I've lost weight. I am seeing my GP this week, because I'm always tired. I'm taking B12, a multivitamin, Calcium , Magnesium and Vitamin D and a probiotic every day. I eat a good gluten free diet, rich in vegetables, fruit,chicken but obviously I am missing something because I am still tired. Any suggestions?