I'm 46 years old. Had constipation and fullness for a couple of years. The last few weeks it has gotten worse. I have very non productive bowel movements (small thin peices or strips in small amounts). I also never feel an urge to go. I was prescribed Polyethylene glycol which did nothing to help. I was prescribed a "mild" supository which lead to what I would call dry heaves of the rectum with no bowel movement and resulted in more pressure. I went in for a CT scan (with a full colon). After the scan, the Berium was expelled but no fecus. I feel like I am going to explode. I was told that the scan showed nothing. I still feel like I'm going to explode. I was told I could take a more effective laxative (Colyte) if I would like. No, I would not like. I'm affraid that if the mild laxative made me feel more pressure and fullness, what would happen if I take the Colyte? I'm really at a loss as to what to do. Do I find another Doctor?