I've been diagnosed with scabies. This is annoying-but-curable, spreads through skin to skin contact, and has about a one month incubation period.
This is what I had at Arisia when I though that I might have found winter mosquitoes or that the hotel was using some noxious detergent on its sheets or something.
We also came home with con crud, laying mnemex out for a couple of days and knocking me out after I'd gotten the diagnosis and the cure for the scabies. Today, I am startled to note that I am actually hungry.
If you get itchy bug bite marks, see your doctor. Stay safe and healthy.