I honestly think you are right.  They have become more and more clever, esp the females, who need blood to have their babies.  Plus the slime mould, who have no brains yet seem to assist, or eat, the midgies  If they have learned to associate with the midges in some way, perhaps they encourage them to get their food, blood, from humans.  I have both in.my house and after one year am able kill the slime gliders with apple cider vinegar poured down my shower's used water drain. That is where the slime fungus produces its babies.  The slime also multiplies, and follows me, as do the midgies.  I moved to upstairs bedroom to get away from them. Two days later, I saw striations...tracks like tires make, going up the carpeted stairs.  The slime Just found the midgies were breeding in two orchids I kept in the kitchen.  Just recently lost sight in.my eye.  Specialist said I had an abcess  that had healed, but left a scar on my cornea.  Docs talked about grafting a new cornea from the eye bank onto my eye, but are now trying to grow a new one.  I suspect a female midge or two or more have been draining blood from my eye overnight and caused the ulcer by drinkingblood, which causedvthe  My GP ran a blood test and I was lacking iron.  I have never had that problem in my life.  

I get strong pain around my eye, and have bite marks ... 3... around it.

Doctors think I have a mental problem, but I honestly think this is a case of "gnat slime" and gnats, as the Americans call midges, working together.  Have seen remnants of midges in the paths the slimes have left. Thatsxwhy I think the slimes cultivate thebmidges. The slimes were retreating to the showers, up and downstairs, when I sprayed the carpets with pyrethrin.  They are transparent, about the size of a bread and butter plate, and can be see only on the shower tiles.  You have to look carefully.