I agree it's anxiety making you feel sick now, I don't believe it is possible to have symptoms immediately following exposure. Also I agree that non emets do that stuff all the time. Let me tell you about my brother, I love him to death but hand washing is not his forte. When he comes up to visit I have to tell him wash his hands before he makes a sandwich ... this after he has driven for 3 hours, gotten gas, bought soda (handled money the dirtiest crap on earth), smoked cigarettes, etc. NASTY. When he isn't here I'm certain he doesn't wash his hands all that often and he is never sick! When he's sick it's cold type things. So now that I've rambled I'm just saying the chance is slim, you don't do this all teh time, no one there was sick, your a healthy person in general. Maybe buy some cranberry juice and have a glass a day to give yourself reassurance but truly I think you wil be fine.
\"As soon as you trust yourself,you will know how to live.\"
Johann Wolfgang von Goethe
\"Do not anticipate trouble, or worry about what may never happen. Keep in the sunlight.\"
Benjamin Franklin