In a way, I will loose my nerve in an emergency sitution though I am not the one screaming, vomiting, or spacing out. If I have to deal with the situation myself, I force myself to keep my cool and manage, although it is hard for me to think straight. Afterwards, I feel the (I think) adrenaline (or is that cortisol?... whatever) rush through my body, sometimes for hours, which makes me feel exhausted and sick.