Here's a place a person can start, if they feel they've something causing just out of the ordinary, all at the same time issues.
Even better, sadly, when/if you have a partner and they begin showing similar symptoms.
If you're up to investigating...browse. BUT, don't sit on it and do that thing where you feel like "Chicken-little" no pun intended:
"The sky is falling...The sky is falling." Something out of the sky, may be? But it's nothing to panic about. Just look into and try to think like a mite from the ground up
Birdmites Oh My - Really? 
