Hi...WOW only 2 days total in the hospital? I was in ICU for 2.5 days then off to a regular room for 2 more......
Sounds like you may have over reached what you should be doing at this point.....I was told PT but not this soon post op and I never got there and then was told it was a good thing I didn't go.....not sure I remember just why at the moment but I do remember my Dr saying it was for the best I did not go.
I did however do the exercises I was given in the hospital several times a day every day and I know they helped me with my recovery....and I did use heat before and after the exercises.
May I ask, what did they have you doing?