Hello madam/sir. I Was retreaded dec in2104 problem with stomach lower back a ultra sound was done after medication was no relief. Renal cyst on my right kidney was 8 something in size. Doc wanted to wait six month to see if thing changed. Had not results back did the ultra sound today. Still can not sit on my buttock long constantly hurt that is causing the annoying pain at the crease of butt. Had epidural shoots therapy and still in pain in that area. My question is did the rear end collision cause this cyst to come up and I have cervical spine problem lower lumbar issue. I wS told that my tailbone was not injured but still git