Definitely! For me, this has to do with the fact that my SA is so unpredictable. Sometimes I'm so anxious I can barely say a word. Other days I don't feel the anxiety and it's like I'm a different person, at least a decent conversationalist. On the latter occasions, I have to be careful not to overdo it (it's hard because it's a real rush when you feel free to be yourself). Still, people see this radical change and assume I'm just moody and don't talk at all, or even acknowledge people, when I don't feel like it. I wish it were just simply moods. I can will myself to speak and interact when I'm in a bad mood; it may come out a little forced, but nothing like the neurotic, utterly inane comments that I spew out when I'm in the grips of an anxiety attack.