Had a first on Saturday
I was removing[another] large dead Ash tree that was going to fall across the drive soon.
2 maples & 1 pine had to be removed[first].
So I had everything on the ground laying sideways parallel to my drive on the upside[roughly face level].
I was topping all 3 at or near face level into pieces that I could toss over to the lower side and down the bank.
I guess those buds were kicking out some pollen.
The maples were budding as was the pine.
About 20 minutes after wrapping up my nose started pouring[snot], eyes started watering, ears popping and then my chest started tightening up.
Within 10 minutes or so the warden [wife] started getting nervous as I was somewhat struggling with breathing.
Luckily that subsided[breathing difficulties] about a 1/2 hour and one benadryl later.
Guessing that it was one of the two species.
I still cannot hear anything in my left ear except for the train that is apparently going round & round.