You're probably okay exposure-wise - but you sound so anxious! ((hugs)) No need to do all that.

You need to eat - because honestly even if you don't eat and you get a virus, you will still get sick. BUT being healthy and well while exposed to something will help your body fight off bugs and germs. Have you tried some extra B vitamins and magnesium? It can help with low-grade anxiety. That and get some exercise and boost those endorphin's.

Have you ever gotten to the actual issue of your anxiety?