Good evening, welcome to Healthcare Magic, It seems that your pain is related to your intestinal problem, especially if you don't have any other symptoms related to your reproductive tract. I don't have any idea of your age and you have not provided exact size of the ovary, but let me tell you some facts; in a women of reproductive age ovarian size may vary slightly ( e.g. your left ovary may be carrying a dominant follicle, making the adnexa look swollen). So we cannot diagnose a problem on the basis of findings provided by you. I think you should repeat your ultrasound
in 6 weeks to re-assess the size of your adnexa ( combined term for ovary & tubes). This will make everything clear. But anytime you feel sever pain in the abdomen you should go to the hospital. Take care.