Hi. I Had A Colonoscopy September 21. I Have A

Hi. I had a colonoscopy September 21. I have a very sensitive bowel. I have Celiac Disease and IBS with variable diarrhea and constipation. To prep I took 3 bottles of magnesiun citrate and 10 dulcolax. I try to avoid Imodium, because with 1/2 tab I'm constipated for 3 days, then the diarrhea is back. The day after the procedure, I took 1/2 Imodium 4 times at the advice of doctor. I was constipated for over a week, now I'm having stools with regular consistency, but urgency and a sick feeling when I go. I've also be experiencing pain in the left mid back. I can find a sore spot. Should I call the GI, or is this normal?