First off, is there anything that you can recall happening around the time that it first flared up?
I mean, anything...from something physical, like fall off, to some kind of emotional upheaval?
This is going to sound really *really* weird, I know. But I promise I'm not completely insane (just a little bit).
A friend of mine's mom had something similar happen to her about three years ago now. She'd been having the most unbelievable pain in her right hand. It had started just after she'd had one of her dogs put to sleep - he'd been hit by a car and they vet said that there was too much internal damage to fix. At first putting it down to overuse (because it's her writing hand). She went to doctors, had xrays, was on medication etc etc...but the pain never really abated. It got so bad that she actually taught herself to write with her left hand, because it hurt too much to use the right. Doctors put it down to arthritis (even though there was no physical evidence to support it) due to her age (at the time she was just 50).
Anyways....long story short, my friend's mom (her name's Brenda) decided she needed some other kind of help, and went to a psychic (here's the insane part! - giving fair warning). This psychic put Brenda under hypnosis and it turns out that about five centuries ago, Brenda had lost that hand to gangrene after cutting it with a knife. She'd died from the amputation.
Yes, I know it's completely and utterly bizarre and I don't blame you for writing it off as some psycho-rubbish, but just thought I'd mention it, since I'm a full believer of reincarnation and that events in past lives affect us in our current life.
And just reading what you're saying, about how nothing else has really helped, I just thought I'd throw that into the pot as something to consider.
I might add, that Brenda hasn't had a days worth of trouble from that hand since, and she hasn't changed anything in her lifestyle to affect that.
I just remember her saying to me and my friend how sometimes, stuff happens that can trigger past life 'memories' even though we don't remember them, or know the cause.
The other alternative would be looking into your family history. Has anyone in your family - immediate or extended, ever suffered from this?
Sorry...just rambly thoughts.
It is not 'cool' to ride without a helmet! period.