BM problems 3.5 weeks post c section

Totally tmi...but has anyone else have any bowel movement problems after their c section? I went 7 days without a BM at all, then it was the most painful one I ever had. Then I went another 4 days without a BM before it became regular again. Then I started taking zoloft, which gave me some diarrhea here and there with no appetite at all...so the doctor took me off the med completely and put me on something else because we thought it was from the meds. I let my body rest for 3 days before starting the new med but it didn't stop the BM problem. Sunday I had severe stomach pains that had me curled over into a ball for about 4 hours, then the diarrhea was constant. I've now had constant diarrhea for 6 days with little to no appetite... Today it seemed to have been getting better, as I went a full 18 hours without a problem, so I didn't call the doctor, and then tonight it got bad again... I thought maybe it was the stomach flu but my husband thought it could be related to c section so I thought I'd ask if anyone else has had this embarrassing issue...?