First Eating Mistake!

I am just over 2 weeks out and just started on mushy food. Today I had half of a scambled egg and half a piece of toast. Too much! I should have recognized my full signal but didn't and then felt the pain. I have had sharp pains in my sides and stomach since yesterday. I told my husband to finish my breakfast and I had to get up and walk around. I then felt sick and threw up some (not nearly half of what I ate though). The pain I had was bad! At breakfast I realized that I didn't have my supper meds and vitamins last night. I also messed up on my drinking. It was such a crazy day yesterday that I forgot to follow the rules for when to drink and when not to. I guess it's all a learning process! Today I am remembering though. I am also down another 7 pounds since last Saturday. Oh and a question...is the constant burping from acid reflux? Because I forgot the pills last night, I found I was burping a lot more. Oh boy...I am starting to miss eating normally!