This is all completely normal. I felt the same way. I'm currently 13 days post op and feeling pretty well. I often don't feel hungry and have to constantly remind myself to drink drink drink. I was soooo scared to have the procedure b/c im a mom of 2 small children under the age of 5 but i'm sooo glad that I did this... and you will too.
Hope you do well and i'll be thinking of ya