Wireless devices and aluminum exposure. Given your job, mostly the former. You may well have developed microwave sickness.
Think horses, not zebras. Look at what everyone around you is saying. "My head" "my memory" my this, my that. Look at this poster >>10193518
and the time scale described. I've suffered the same thing, and all I've got is a WiMax tower a mile or so from my house and a cell tower a few miles in the other direction.
We know what causes it. We have decades of epidemiological data and hard mechanistic links. It's the fucking wireless garbage, get rid of it and get away from it. The longer you're around it, the less reversible its effects.