Can sympathize with your pain. I had a "nickle sized" torn & scarred section of meniscus removed from my left knee with arthroscopic surgery that I'd been limping around on for years after a car wreck. The surgeon also did an "arthritus scrape" while he was in there.
Hurt for the first few weeks but the chronic pain was gone thereafter and has not, knock wood, come back. It had been keeping me up nights at the point I broke down to have it done. Should not have waited.
Do what the rehab folks tell you and give it time.
Two weeks after I had my knee surgery I took ths little guy from the first tree-stand hunt I had attempted in 15 years. Beads of sweat on my forehead by the time I got onto that tree stand I can tell you. That was opening day and If he hadn't come along I probably wouldn't have tried a second climb up.