I am not on day 8 but I am just 4 weeks post op. I had the same thing going on around that time. Believe it or not I think your stomach is still a little numb from surgery. I was so scared that my pouch was too big because I never felt full. But, trust me if you eat or drink to much you might not feel full but you will feel mega uncomfortable. It takes a while to finally get all of your feeling back. As for the full-liquids hang in there.