I've collapsed (fainted) from the startle response, but the right to left handed thing sounds more like head injury. I know that trying to keep a trauma repressed takes a huge amount of effort and have adverse effects. I'm not sure if that is what she is doing. Is there a way, by chance, that you could encourage her to come on to this site and read a bit. Hopefully, in time, she'll be able to introduce herself.

She's very lucky to have you. You've taken the initiative to read as much about ptsd as possible. You might want to consider posting in the spouses forum. There are many partners of ptsd'ers that would understand your frustrations.

Welcome!