Everyone seems to have it. The Wife got it, not nearly as bad as me. Salsola and Spungen have been suffering from it, apparently not so badly that they've restricted their diet to Saltines and bananas. So has the other partner; I don't yet know how bad. Another attorney in the office, as well as her daughter and husband, and one of the paralegals in the office -- they all got it, too.
So I guess it's not food poisoning after all. That doesn't remove my trepidation about eating at Tokyo Steak again. After all, I don't know why my attack seems to have been so much more severe than other peoples'; although I'm only supposing based on what other people have said about their experiences.