Right now I'm eating between 650 and 800 calories a day. I can reach my 65g of protein, and I can hold about 6 oz of food per meal, but I tend to just eat 4oz. 3oz of protein and 1 oz of a veggie. Is this normal 1 1/2 months out? Am I eating too much? My doctor says I'm doing fine, but I just dont want to mess up or stretch my bypass out. I guess I'm paranoid.

Everyone is different.

I was only eating max 500kcal for the first 2 months..

600-800 kcal/day at that point is about average, so you're fine.

I'm 7 weeks out and at my 6 week check up with my nutritionist she said most patients she sees are around 750 or so between 6 weeks and 3 months. I was sitting at around 800 and she wasn't worried about it at all, but after checking my macros did recommend I try to keep my fat a little lower (I was using both cheese and avocado during soft stage).