I think it very possible I aspirated, but it seems more likely that I aspirated some of the sinus drainage. After MAC was ruled out, my sinus issues became the working theory for my lung problems.
I did have reflux in the spring when I was doing the postural drainage recommended by Mayo and Tobrax drops in head hanging position for an opaque frontal sinus (last ditch effort to avoid surgery-it worked). I took reflux meds until sinus cleared and I stopped the postural drainage as well.