I honestly didn’t understand what was happening to me when it happened, it was almost 2 years ago at the beginning of the pandemic at work in a supermarket when the panic buying was happening. We were putting things on the shelves and people were grabbing them straight off and looking back I was absorbing the stress around me.
The only thing I could think to do was remove myself from the stressful situation by going in the warehouse and actually that helped. Quietness and space helped a lot. I don’t know if this will help you at all or is relevant, did the paper bag work? I have never tried that.