I also suffer from METAL ON METAL hip implants. May I ask what your Cobalt numbers are. Mine are 8 parts per Billion. My doctor told me not to worry unless it gets to 80-100 parts per Billion. Mayo Clinic Suggest that there is a problem with the device if your cobalt levels are 5 parts per billion or grater .
I also have systemic issues: cloudy headedness & depression; a pet scan showed metal ions in my brain, I struggle with Balancing , I have developed hypo thyroid, and of course I have a lot of pain and swelling at the surgical site.
God bless you & hang in there,