I Recently Underwent Surgery For Ovarian Cancer They Couldn't Complete

I recently underwent surgery for ovarian cancer they couldn't complete the surgery but took biopsies. I have been somewhat constipated for the last 4 days I take stool softeners daily. A little while ago I felt the urge to go to the bathroom but couldn't go. Within minutes of getting up from the toilet I vomited I was not nauseas it just hit me. What is going on with me?