If you have had any medical implant device in the past 20 years, hips, knees, sholders, that implant is most likely made inpart of one of two toxic metals: Cobalt or chromium. You may not even know it because doctors & The FDA are not requiered to tell you even if that implant has been recalled.
For the love of God, go and get ed blood or urine cobalt cast, do it at your regular doctor not your orthopedic surgeon 0.3- to 1.0 parts per billion is natural - 5 PPB is considered toxic, & strongly suggests having problemd with your implant. If you have 5.0 or higher cobalt levels ask for A Raidiactic sugar contrast PET scan of your brain.
Good news is if you take out the cobalt & replace it with a non toxic implant the cognitive symptoms improve as the cobalt shaveings & cobalt ions process out of your body