I am glad to hear that you have a good doctor willing to help you- so important that a good professional be on your team.
Oh, yes. It definitely is good to know you have "something" because you can try and treat the something instead of sitting around confused. I certainly hear you there- I dealt with that and it is terribly frustrating.

It is still so hard, so hang in there, hun!
I sure hope the blocks help you out. Sending you some (((pain free hugs))) and of course prayers.
ETA: I know the feeling... it is so scary when it spreads... hang in there. A good attitude helps.

(and you are doing a mighty fine job. Distractions definitely help! Go girl with the greyhounds, that's wonderful!!)