my mom tells me the same -if you get it,you get it.it's not the end of the world. They just don't understand us!
I now how you feel,but I suppouse you didn't get sick last summer when I was with my family on vacation,my brother got sick! I was terrified. I started to cry and I was expecting being sick every minute. That ruined my vacation. He threw up once that nigh but he had fever so I was scared. I thought my parents would get sick and I was suspicious about the food mom prepared..but nothing happend,luckily.
I supose you didn't get sick and I'm glad for you.