I began running to lose weight a few months ago. I lost 25# in 4 months from exercise and a low 1500 calorie a day diet. I became constipated and am experiencing other symptoms. I have a discomfort in my transverse colon (across my upper abdomen when my bowels are moving. It feels like I am moving something hard through my colon and It causes me to feel weak and tired when I feel this happens. When I go to the bathroom I do feel better. There is no blood or mucous. My stool is normal color but heavy. I went to my doctor and explained I also have a lot of burping and have a weird taste in my mouth as well as a white tongue. My doctor put me on previcid and rantadine. I have been taking mirrolax for the constipation. I had bloodwork done and all was normal. I am 45 yo male with no family hx except for gallbladder disease. I have not had any pain in the area of my gallbladder. Just a discomfort that moves across my stomach when my bowels are moving. It causes me to feel very weak (almost like a vagal). I can not afford a lot of tests right now. Your advice is appreciated