You should not feel bad about eating too much!!! You are starting a long hard road. Don't let anyone tell you this is an easy thing. I am one of four people in my group of friends who have had the surgery, and we all went throught the head hunger vs. real hunger. You are going to forget and PB/slime etc. You are going to do it more than once. After a couple of incidents, you will learn the difference, and will try to be more carefull. I think it is the Pavlo's dog thing :thumbup: I know this isn't a popular thing, as it can cause you to lose your band, but I haven't met one bandster who hasn't gone through it yet.
The pain in the chest is referred to as the "golf ball" or "stuck". I still get it if I eat a too large a bite. It helps to stand and walk around between bites. Don't try eating again until it passes. I swear it takes me an hour to eat a small plate of food, but I enjoy every bite.
As long as you are on mushies, you should be fine. I didn't feel like myself until well into the 5th week, but I always healed slowly. There is some discomfort if you are still swollen and trying to eat, which may be what you are experienceing. Keep to small portions, eat slow, and stay on mushies.