I'm 4 days post op too. I thought I was doing really well getting all my fluids in but it turns out I'm really not. I don't ever really get a sensation of being hungry or full. The only thing I do get is if I've had too much I get what feels like heart burn but it comes and goes, isn't a constant ache.
My surgery was Monday so I'm 3 days out. I'm on full liquids for the next 2 weeks. My nut came to see me before I left and gave me a list of foods I could have these next 2 weeks. Decaf coffee/tea with sugar substitute. Sugar free Popsicles and jello. Blended/strained/creamed soups. Cream of wheat, cream of rice, or malt o meal cereal. Light yogurt and sugar free custard and pudding. Thinned mashed potatoes no sugar added carnation breakfast essentials, protein supplements
I cheated on my pre-op diet as well. Surgery was this past Monday (22nd) and all went well, even after I cheated Saturday night and are popcorn at the movies. The biggest thing is, don't let one slip up bring you down. Cheat 1 meal? Make it right the rest of the day. ????