How much exercise are you doing?
I had my surgery on 4/7 and I joined the gym here on post. I try to do between 20-30 mins on the treadmill and 20 or so mins on the bike (depending what I did on the mill) I also started putting inclines on the treadmill for an extra challenge.
I didn't go to the gym last night but I am trying to go at leat 3-4 times per week.
Jamie