Depression came first for me. I was pretty active socially when I was younger but then I became depressed and withdrawn from being socially active. I somehow lost interest, lost confidence some where down the road, which set off my avoidant behavoir of not going out on weekends, not going on dates or hanging out with friends. I had experienced anxiety attacks and panic attacks in college due to a lack of social support, which I still experience. I believe that because I was never treated for my depression and didn't know how to deal with it the right way, SA settled in. If I was treated for my depression earlier on I think things would be a lot different for the better.