Lisa,

I know when my stress levels get high, usually that night or the next day I pay for it. Sometimes I literally have to force myself to speak when spoken to when all I want to do is remain silent and just withdrawn into myself. A lot of times I'll just go to bed to be left alone.

I've wondered if I do a minor 'shut down' because my brain has been over worked (for lack of a better phrase) and extra external stimulus is just too much to deal with at that time.

Blocked is a very good description of how I feel during these times. And once it lifts, it's quickly gone.

Hope this helps.
Lisa