What's wrong with my stomach?

okay, i'll admit that i have terrible eating habits - i don't eat all that healthy (recently i've only been consuming eggs, toast, cereal, soda, and some water). i also eat very little, and drink very little - i don't personally think i'm starving myself, because i do eat when i feel hungry... show more okay, i'll admit that i have terrible eating habits - i don't eat all that healthy (recently i've only been consuming eggs, toast, cereal, soda, and some water). i also eat very little, and drink very little - i don't personally think i'm starving myself, because i do eat when i feel hungry (though, i have to say, what i assume to be hunger is now just a dull feeling in my stomach.. i normally can't feel much of anything) regardless, within the past two/three days, i've started to hurt after eating and drinking anything (save for probably some foods i haven't tries yet, and water). what's causing this?
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