Will check out my Dr for Arcoxia. Find that doing a stronger routine every second day yields benefits. Going too hard and fast at my advanced age means being sorer longer. I can now plank, shaking all the while, for 30 secs, do 12 push ups, 60 sit ups in blocks of 20 or so before the stomach complains too much. Do Pilates 100's and working with new exercises from the physio to reduce late afternoon and evening muscle soreness. Getting there albeit slooowly.