I lost no weight while in the hospital and now have gained a pound a day (for six days) since returning home from the hospital following AVR. I'm finding this hard to understand - I have practically no appetite and am eating very little. I drink lots of water but that's pretty much in one end and out the other. I'm exercising as directed, maybe a bit more than recommended, but the weight thing has me puzzled. Any wisdom out there? I need to get my weight back down because it effects my blood pressure and blood sugar.