i have a case of IBS with constipation, and have been taking Zelnorm. Lately, I have been going to the bathroom, and stool is water, I thought maybe I had an obstruction, but a week ago I have had a ct scan of my abdominal area, and they found nothing. I'm scared this is serious, I thought about quitting zelnorm for awhile, or something. in the last week or so i have also had some pain, in the abdominal area, sometimes bad, but its just gas. I'm just scared, I dont know what to do. I dont want to keep going to the bathroom and its water. I'm scared. i have a colonoscopy scheduled for april 10. I am scared of what they might find. If anyone has the same problem as me, or knows something, please respond.