Sorry to add this so late, but TV news just told me about an increase in "Teflon Flu". Remembering you had non-stick pans, I wanted to find a link. In a quick check, the majority of the links seemed to come from somewhat suspicious sources such as NYPost and Daily Mail rather than a .gov or .edu.
I'm not saying this is a legitimate thing, but if anyone wants a starting point, you could try here: https://www.womenshealthmag.com/health/a61623919/teflon-flu-symptoms/