螃蟹的泡泡

Man!  I had a great doubt of the necessity of the knee surgery.

It has been more than a month since the surgery.  Full anethesia was a horiible experience.  I woke up w/ nausea and the rest of of day in & out of consciousness.  It has been a month since that experience, but my knee doesn't seem to do better.  I am on physical therapy for 12x, as per doctor's prescription.  My knee is either still swallen or something wrong w/ it!

I still can't bend/fold it fully.  I can't twist it too much.  It locks on me if keeping it staight too long.  I don't see how my other friends could recover in a month!  What's wrong w/ mine?!!  So, pls tell me why I had the surgery at the 1st place?