I take no prescription drugs. Had antiobiotics 9 yrs ago after a surgery. Other than that, no history of antibiotic use - maybe three times as a kid.
I had chicken pox when I was a kid.
Four tests for toxins came back negative. Recently had two mercury fillings replaced. No toxins that I'm aware of. I have never handled toxic substances. Haven't been sick for over seven yrs but no idea about a viral exposure which was asymptomatic.