I am physically not able to eat more than ~1000 calories a day

I'm naturally very skinny, I've got a fairly small stomach too. Every time I eat anything more than 1000 calories a day, I get extremely bad stomach aches, and let's just say that because of those stomach aches, I loose all of the calories I've intaken that day because of it. What do I do? I want to gain weight, so I can turn that weight into muscle (abs in specific)

submitted by /u/zeeonesixty
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