It's one of the reasons I'm not open about my depression at school. (Teachers do know I think, classmates don't) I will mention the PTSD if it comes up, as well as the ASD, but not the depression. I don't want to be considered faking or exaggerating just because I try not to let it show at school, and manage for the most part. The PTSD is more obvious for those who look, and the autism.. well, I'm enough of a weirdo occasionally that people won't easily say I can't have that diagnosis. (Not saying people with autism are weirdos. Just that if someone is a social butterfly, tons of friends, perfectly well-adjusted, never needed any accommodations or disagreed with a teacher.. you'd be more inclined to believe they bought their Asperger's diagnosis on ebay. Asperger's seems to be 'hot' anyway. But as I am no social butterfly, I feel less afraid of being disbelieved. I do smile a lot, so I am afraid of people not believing my depression.)