Have been totally perplexed by the smell of exhaust -- like walking past an idling bus, or being in a car that's burning oil that's got its heater/ blower turned on. Day, night, lying down, sitting up
, with other people around, by myself, in the car, outdoors.
My situation has been going on constantly for the past week or so, but I think it is not the first time. But now, there seems to be a bit of a throat scratch with it, so I wonder if it is a sinus infection.