My Husband Donated Plasma Today And Had Some Bad Side

My husband donated plasma today and had some bad side affects.. he vomited immediately after being unhooked from the IV and was not well the rest of the day. Later on we had sex but he wasn't able to keep an errection and then completely lost his errection all together. I'm worried and I'm unsure of what's going on. Is it possible for the donating plasma and everything, including the failed errection, to be linked? Please help!