i only ask because .....
it sounded like you might have found a difference..
It could be the chinese food aspect, there are chemicals in it that can make some people have physical reactions.
Now about the chilli part, you might eat chilli (hot) food all the time, idk, but personally, if I tried to eat chilli or something with chilli in it these days I'd probably have a bad reaction... which is weird 'cause when I was a kid I used to eat chilli off the bush (and have a crazy story about going to the toilet after eating a chilli and not washing my hand beforehand - resulting in a very sore bottom), and I kind of over-dosed on chilli and ever since then have hated it, won't touch the stuff. But saying that, you probably eat chilli all the time dunno.
It could be purely psychological. People can have psychological reactions to something if they've been conditioned to fear (even if you think it doesn't really affect you any more) it, especially from a young age. Physical reactions can come from having a psychological reaction...
Well actually i eat hot stuff all the time with no problems. The bad reaction was just my tummy feeling odd and just thought might be a 1st time of trying something thats all.