Also, try tweaking the draw length 1/4" each way. As we age the body changes. Joint wear along with cartilage and such. Maybe a tweak here and there will help.

Very rarely mentioned is the holding wight of the bow. Used to be adequate holding weight to almost force you to use those large back muscles to hold the bow at full draw. With today's higher letoff there isn't enough holding weight and sometimes you are holding so little that you physically have to hold the bow up while you're trying to aim at the same time.