JRH-
I had surgery at the end of November and I still have pain and a lot of tightness in my knee. I also have the feeling like there are rubber bands in my knee that if I bend it very much they are going to snap. I'm not saying that you shouldn't get it checked out or that there isn't something going on in there, but you are only 16 days out. As far as PT goes, I would ask your OS about it. I wish I would have had PT in the first month. All I have done is at home PT.
I hope you start feeling better very soon. Also, since you have a few days until your appointment, make a list of all your concerns. That way you can be sure to ask all the questions you have, and maybe make your OS slow down a bit and listen.
Jordan