Just had a total knee replacement. why am i feeling no pain 8 days out? is this normal?

Yes: Pain is a very personal thing in that some people feel it worse than others. The type of knee replacement and approach can also affect post op pain levels and functional return. You should feel lucky your pain is so well controlled.

Can be: I am pleased that you are doing well. I suspect that you are still taking pain medications, which is ok this soon after surgery. Continue to work on flexibility and muscle strengthening. You may develop pain later, which is also normal. Don't hesitate to take pain medications if you need them.