Pain has anybody had these sort of injections before ??? As I am a little apprehensive to say the least I don't even know how they do them yet is it under sedation??? I would presume so as it says in my letter nothing to eat for 6 hours before I go in at 1 I'm a little worried as never had injections in spine it's always been my knees that have been the problem as I have oa in them x