My Dr. Has me on a strict clear liquid diet for 2 weeks post op. In the first week I've been losing 1 to2 lbs a day. Yesterday I lost 5.2 lbs in one day. I was starving all day. I even thought about having some yogurt last night but didn't. I know I didn't burn 15000 calories yesterday. Does 5 lbs in a day seem like too much. I left a message for my Dr but today is surgery day for him.

You'll be fine. If anything you're dropping Water weight and Fluid weight from surgery; not a "true" weight-loss per say.