Did I ever speak too soon! My Pt ( as you all warned me) made me feel quilty that I was not doing enough. Besides 8 hours on the CPM which apparently is my down time, I should be up and around. Doing my exercises 4 times a day. I felt like a slouch, and I was feeling better so I was up a lot, trying to decide if she was right since my swelling has not increased, and my pain levels were tolerable. 5pm hits and I shoot up literally within 10 minutes to and 8 and then a 9 an hour later. shooting pains, aching pains, sharp joint pains. It was at crying and nausea stage, finally subsiding around 9:30. So I obviously did too much and if my knee is not telling me during exertion time, how am I to figure out how much is too much? Trying to listen to my body tell me when enough is enough clearly didn't work. Of course the visiting nurse tells me that her goal for me is getting pain under control. So frustrating. I have a new PT today and will go through all f this with her, Hopefully she will be a little more humane.