Yeah - often, when T asks where I went, my reply is simply "not here." And then, once T helps me to get grounded, we talk about why I needed to not be there right then.

Button - with practice, and with your T's help, you'll start to notice when it happens earlier and earlier and maybe even be able to tell T when it's happening. I'm now able to tell my T when it starts that I feel like I'm not really present in the room anymore, and we stop and she lets me try to ground myself. If I need help, usually, all I have to do is look at T and she'll guide me through it.