I had the shot in September 07. I agree that it is scary to read...

I had the shot in September 07. I agree that it is scary to read all these posts. about two months ago I noticed a small "dent" on my lower back. I though little of it, thought it was just a dimple from exercising. after months it has persisted and when you push it it feels like there is just nothing there. I googled it and was both relieved and newly concerned to find this. I have an appointment with the people who gave me the shot, but realize there is little they can do, at least they will know. I feel helpless and am scared it will continue to grow...just don't know what to do.