Another side effect I've noticed post-op is that I cry very easily...and let me tell you, when you've had your sternum sawed in two, crying is the last thing you want to be doing. A few times, my emotions were totally out of my control. I brought this to my cardio's attention and he said that when your body goes through a surgery like this, every part of you is affected and your adreneline is totally zapped. It takes time for all of the different levels in your body to return to normal. I'm 8 1/2 weeks post-op now and have more control over my emotions, but for awhile, I didn't know why I was so emotional and that frustrated me. But having an answer for why really helped me to cope.