I have had a spot on my back just left of the spine and about 4 inches above the tail bone that has been bugging me on and off for the past 7 years or so. When it used to bug me it was just sore in one spot on my back about the size of a tennis ball, ever few months It would come on for a while and I would get used to it and then not notice it anymore and it would go away eventually. About 4 years ago I got the first sharp stabbing pain in that spot, it was sore for about a week or so then got better. About 5 weeks ago I noticed that it was starting to come back, it was kind of a mild burning sensation in the same spot, it has continued to get worse and for the past 4-5 days it has made my left leg start to hurt, mainly in the back of the thigh, even when my pants would move across the skin on my thigh it causes a small amount of pain and when sitting the pain in my back now radiates down the side of m hip and the back of my thigh down to my knee, when I straighten my leg out it also causes pain. I have also been getting sharp stabbing pain in the same spot about 5-8 times a day that slowly fades back to burning sensation and leg pain. I have not been to a doctor about the pain because I was almost always able to ignore it to a certain degree, but it is getting worse and I would like to get our opinions about it. I do plan on going to see a doctor most likely next week where I will talk about this also.