I feel the exact same way. Even if I go shopping and it's calm and peaceful in the store, I go home feeling overwhelmed with rage and fear. I think people around me are scared and yes, it's affecting me.
I have been feeling this to. I know some of it is me, and the rest not. I've become so sensitive and the urge to help has been out of control. I caught myself helping someone who I know is a narc!! Do you feel really stressed?