Janet, I know it's frustrating to be in a lengthy recovery, but you really are very early in this process. I'm not surprised at all that trying to do something like sitting and scraping the house would irritate your knee. You know, there's a reason we tell folks not to try and go back to work before 12 weeks. Basically you're doing that by trying to do home projects. You can do it, but just be prepared that it may slow your recovery and cause you unnecessary pain and swelling. That stiffness you're feeling is from swelling and it's a form of pain. I wouldn't expect to be that happy camper until at least 6 months. That's the point where most people say they are starting to feel somewhat normal again and sometimes even forget they had a knee replacement.