@retreat1 I'm sorry you are having such a reaction to metals and that is really tough to live with. I also had a reaction to titanium alloy in surgical plates after I fractured my ankle. Fortunately, I was able to have those removed and it solved the problem. I had skin pigmentation getting darker, throbbing pain and chronic hives in massive patches on my body that began at 6 months after the ankle fixation. I reacted to metals from pierced earrings and had to give that up years ago. I have been a patient of doctors in the field of environmental medicine and there is a practice in Texas that treats patients for implant sensitivity. If you look at this discussion with another member, I shared this information with @moprea . If you follow the discussion, this patient is working with the Environmental Health Center in Dallas and having remote followups by video conference. https://connect.mayoclinic.org/comment/860212/

I hope that this information can give you some hope for improving your situation.
Jennifer