Yes I had that too. I'm not sure if pyridium is ok to take in pregnancy but I would ask and see. It helps a lot when you have to pee. There is also an OTC product that helps too but again I'm not sure about taking it in pregnancy. It's called azo standard. There is always cranberry juice too! Kidney stones are pretty painful. This year I had 11 removed out of one kidney and two stents out in. I've had them in the last too but never required surgery for them like I did this time. Hope you get to feeling better soon!
I was applying heat to it for a while thinking it would help. I had no luck with that. I've been icing it and the pain is starting to go away. I still have the discomfort and urge to urinate but I believe that's normal with the kidney stones and stent.
I wonder if it is a pinched nerve you've got after the surgery. When they put the stent in you have to be positioned and I wonder if that aggravated a nerve in your back. Stents themselves can be painful but it's a pain in the kidney area. Whatever you do make sure to drink plenty of water. Don't let that kidney shrink down and rub on the stent. I had that happen to me and I was in the worst pain of my life. Hope you get to feeling better!