Yes, same here. My surgery was on Friday 03/11, just a little over a week ago. By the following Tuesday 03/15 I was starving. It was awful! On Wednesday 03/16 my doctor allowed protein drinks and after starting the protein the hunger feeling was gone.
As I was still on clear liquids I drank the Isopure pre-mixed Green Tea - has 40g of Protein in it. I highly recommend it.