It's already been said by pretty much everyone, but it sounds like said person is just being a big ol' d-bag and trying to make you feel like a terrible person for whatever reason because it makes [i]them[/i] feel better O_o

I've never roleplayed with you or really talked to you much but I've seen you around on the Guild Hayley and you don't strike me as the type of person who creates characters with said problems/disorders just to "attention whore" or piss people off/make a mockery of them.
In fact I'd have said you seem like the very thoughtful and intelligent type of roleplayer and certainly the type of person who researches before actually trying to portray anything in a character, so I'd say they're being unnecessarily sore about it, most likely. Ignore the miserable fucker xD