I'm 16 and live in the USA if this is relevant. Back in February 2013, my then-13 year old sister came out with allegations that our father had been sexually abusing her for years. I was 11, going on 12 at the time. Since then she's struggled on and off with depression, self harming and suicidal thoughts, and has been in and out of mental institutions. This is where I come in. I've never really been the same since then either, but in my own way. Before that I was a good kid, with a bit of anger management and impulse control issues, but nothing major. I had a good social life and thrived around friends. I've noticed though that I've grown more... distant. I've basically become a shut-in, if you will. I've passed on countless valuable opportunities to bond with friends and family, instead opting to coop myself up in my room doing whatever all day. I've lost most of my social skills and I don't do very well in conversations anymore. I'm usually left standing to the side and listening. I've just recently had sort of a realization about all this. I think the reason I've isolated myself is because of this empty feeling inside of me. I crave for there to be meaning, but I just can't find any. I've never had any thoughts of self-harm or suicide, though, and I don't think I ever will. Still, I want some opinions. Could this be depression of some sort? I have Aspergers too, if that helps with your conclusions.