@rponcelet It sounds like you have been through a lot. I know what you mean about reading. YouTube has so many videos and they are all long. I believe mine is nerve damage to my tendons. I am going to try Vitamin B12 which does not fix them right away, if that is the problem. But, from what I read that is the basis for most pain. It took years to get in that condition and will take a while to get back into shape. Some readers were doing the daily Vitamin B12 injections daily and then once a week for a month or so. I will just try the Vitamin B12 with methylcobalamin. The Vitamin B12 found in one a day vitamins is a cheaper and easier to include than the methylcobalamin which comes in stronger strengths, which I will be taking. From what I read Vitamin B12 is not stored and eliminates what the body does not need. Will see what happens with that for awhile and take a small magnesium tablet too since that is not in my daily vitamin and also helps muscles. I am not suggesting anyone else do this. I will be talking to my doctor about it in about a month when I see him again. It is just what I read from quite a few sources. I wish you well with finding out the results of your PET scan.