I have been having trouble having a bowel movement the past couple of days. I have had some pretty good pain with it also. I have had this before and it went away .Every time I have had it is when i have my period . I went to my PCP and got a pelvic and ultrasound of my ovaries. Came out fine no growths. Now he wants to do a colonoscopy.I have never had a blockage before . I am not throwing up . I am a little sick to my stomach but no more than usual. The pain is in my right side and into my back it goes away with ibuprofen. I am having somewhat of a bowel movement b/c of the milk of magnesia. But they are not the normal i usually have. Should I take the meds that are suggested on here for blockage. I really don't trust the PCP he doesn't know that much about CF.