I used to worry that people who didn't know me well – like classmates and co-workers – would find me weird or asocial because I sometimes have the need to keep to myself, to recharge my batteries. But now I just say to myself: "Let people think whatever they like. They don't know what I go through on a daily basis just to get to work. If they did, I think they would be impressed."
That being said, me suffering from periodic depression and anxiety doesn't mean that I'm always sad or that I'm made of glass. I'm just a bit fragile at times. But then again, aren't we all?