I am SO SO sorry that i was not here at the time you needed help...anyway, i'm going through the same thing right now, except its not anxiety. I can tell you for sure that i've actuallynot washed my hands before i ate, and i was fine. a lot of people dont wash their hands in the bathroom, and they are fine also. It is kinda disgusting to think about the germs, but so many people eat right after being in a bathroom and are fine. I'm sure that its just the stress and nervousness, but you will (or probably are, now!) fine.
<3 Anya--
PM me for contact info such as skype, email, or facebook. Thanks!