When I dissociate, my head feels heavy, and I feel tired or sleepy. Often my vision dims, sort of fades from the outside in. I find it difficult or impossible to concentrate. I'm not hearing what my T is saying. My former T used to get my attention. Say my name. Get me to look at her. Ask me to feel my feet on the floor. New T will ask me if I am having trouble staying present. Then we just talk until I "get back". I'm not sure if sudden dissociation has a cause. Sometimes it doesn't even feel like we are talking about anything triggering, and yet I dissociate. I think it gets easy to dissociate and then that's where I go when I'm overwhelmed or whatever. HUGS Kit