I am a 49 year old male and I am having problems with hard stools, for a couple of years. I have had 2 CT scans and a barium enema. None showed any problems. I drink about half a gallon of water a day. I take 2 or 3 colace. Prune juice. And Metamucil or Fiber Choice. I also take Gas-X And Milk of Magnesia. The doctor has prescribed several different things over the years with little result. Right now I am takingcolchicine. The laxatives cause some diarrhea but I still feel full and bloated especially on my right side with gurgling sounds toward my lower back. What could be causing this?