I've had a couple of Big sneezes from fresh air, but Harold's worse inside than out. Dust mites is a possibility, although goodness knows why it's only started this year, when I'm living in a clean house rather than a squalid dump.

I think I shall claim to be allergic to Lack of Cat. My sneezes are worse when I spend a long time away from them. Perhaps I have so much cat Stuff up my nose that nothing else can gt through to irritate me?