This thread is asking for it... What happens if someone says "Yeah mine did."? You're gonna go, "but if his did mine can too, oh no!". Best not to ask, some peoples fears are bound to become reality while most others fear just never will. The fact that you fear it makes you no more less likely to get inflicted by anything. If ANYTHING, stress could weaken your immune system and make you more susceptible perhaps, but that's it.
Be happy you're healthy. Nothin' like being happy and healthy, I've learned this since my HA went crazy. It certainly makes us appreciate the times when we can just worry about real life and not misguided fears!