I hope your consults go well. Information is always good and sometimes new disciplines really can make a difference. My consult with a peripheral nerve surgeon was life changing when many others had given up. (my CRPS came after a later procedure) I am staying hopeful for you. Please let us know what they find. Tremors can have several causes so it's worth running this down. When my tibial nerve was badly entrapped I had weird fasiculations in my calf and thigh constantly. Those stopped after my nerve surgery. I'm not saying that's what you need BTW, just citing my experience. Continuing to look for answers and treatments brought me massive improvement and I am praying it does for you too!
on the tingling in your hands, do you think that is related at all to your crutch use, either from pressure at the armpit or wrists or tension in your shoulders? - just a thought...