I should have mentioned...I had a total right knee replacement September, 2022. By later afternoon and evening it hurts really bad...I do take an occasional Tylenol 3 but can't every day and it really only helps some. I personally think it's muscular and don't see the ortho guy (2nd opinion) till next Thursday unless I can get in earlier. I'm just so tired of it being sore, pulling, clunking sometimes and waking up at night sore and stiff. He suggested the bone scan to show areas inflammation. I'm hoping he sees something that we can do that does not require anymore surgery.