Have any of you had allergies to walnut or walnut burl?

I'm trying to figure out some lung irritation that is about 3 months old now.

I went through a flu and a cold in the last 3 months, but I remember having the lung pain before that. It started about the same time I was sanding my Walnut Burl Coffee Table with a very leaky face mask or no face mask.

I am wondering if there was a fungus in the burl (spalting mixed with the burl) or the toxin "jutlong" concentrated in the burl. That's the toxin that kills many other plants around black walnut trees and is a problem in a horse's drinking water.

This was also the only time I have experienced the stink like dog doodoo that I have heard about while sanding the walnut burl.

I have never had that problem with walnut before. I got a much better 3M half face mask with the P100 filters for the future (and VOC filters for finishing).

Any thoughts?

Thanks.

Brian