I used to think that the generators were running at the bank call center 1/4 mile away. I only heard it when it was very quiet, any noise at all and the low dro

I used to think that the generators were running at the bank call center 1/4 mile away. I only heard it when it was very quiet, any noise at all and the low droning disappeared. I took more vitamins during the early days of the pandemic and magically the generators stopped running.