I have been training for about a year and a half for the past 8 months or so i my lower back on my left side hurts every time I kick (with my left leg). I went to the doctors and was told to physical therapy, which i completed. After a couple weeks break from training the pain was much worse, so I went back to the doctors. This time I got an x-ray. I just got my results today and i have arthritis in my spine. I have another doctors appointment next week, but I am worried she will tell me to stop training. I almost want to train through the pain but i don't want to cripple myself. I was wondering if anybody else has this issue and how does it affect their training?