Is something wrong with my pouch (gastic byp ?)?

I can eat way more food than I thought I should be able too and I'm only a week out from having gastric byp surgery. I have flirted with some items I shouldn't be touching so soon and I haven't experienced dumping syndrome from any of them....including fried foods (chicken, zucchini and fries) dairy products (cheese and ranch dressing), and I'm sure i've had something else i'm not supposed to touch (though i've been successful at staying away from sugar). I try these foods and then sit and wait expecting something bad to happen to me but so far nothing. This concerns me because it makes me think that there is something wrong with my me and also because I'm scared that i will easily slip back into my old habits! advice anyone?!