Hi, I Was Just Wondering If I Should Go To

Hi, I was just wondering if I should go to my doctors. Last September I had surgery and the doctor accidently cut both of my ureters. The right side wasn't as bad as the left side. I had two emergency surgeries and one big surgery that was planned. I had the stent out (on my left side) since the end of January. I've been having these stranges pains on my left side and my back. It does not hurt when I urinate or anything so I don't think it's a UTI. These pains have been happening since Thursday evening. It gets worse when I sit straight up (driving is the worse).