I had one and the pain was worsevthrn labor. I was crawling in the floor and the pain didn't let up. The doc said my kidney stone was remarkably huge! I had to have surgery. But if it's on and off you might have an awful kidney infection. I would go get it checked. You don't have to have blood in your urine. I have chronic kidney infections so I know your pain and I hope you feel better.
I have kidney disease and have had way too many kidney stones...Pain usually is in those areas but is a very intense pain that doesn't come and go. Drink lots of water and see if this helps. Kidney stones are so painful and I know right away if it is that because of the intense pain. Hope you feel better quickly!