Demodex mites, or eyelash mites.
Look up "NO SEE UMNS" (not sure of spelling), they are invisible flying bugs, naked to the bare eye. They come out and live in drains. Come out and bite during the evening hours. I dealt with them. Most people haven't hear of them. But, believe me, they're very real. I found a cure, pour a good bit baking soda down ALL drains in your house, including basement drains, the pour a good amount of white vinegar down All drains, let it set for at least 20 minutes, finally pour very hot or boiling water down All drains. You will notice the biting and itching will be gone. That's if you are being affected with No see-ums. Hope this helps you. Be Blessed
They're venomous, and bites need prompt treatment. “Brown recluse bites usually have a black, necrotic center, which spreads very quickly,” Schifman says. “They're also a lot more painful than your typical mosquito bites." Try putting vinegar in a spray bottle and spray your entire body at night and lysol your entire house or use 99% alcohol to spray your entire house down. Sheets, clothes, everything.
may i ask what state were you living in when it started? im in Harahan louisiana and it started happening to me 8 months ago in june. im on the verge of death myself and the only hope iv got at the moment is finding this post site. before today i havent found any info on this whatsoever! this is the worst this i could ever imagen and if i find any solutions ill make sure to let you and everyone else know!