I definitely have social anxiety. It's strongly correlated with other POIS symptoms with me. In addition to whatever chemical effect POIS is exerting on my brain, I think the social anxiety is exacerbated by my fear of having strong symptoms at the wrong moment. Makes it quite scary to commit to meeting people, as I can be anywhere from pretty charming and funny (low symptoms) to humourless, withdrawn and stumbling over words (high symptoms).