[out-of-ideas]

i have had this issue and realized i was basically getting a low key elec shock every time i had the power plugged into my mac; turned out it was the apple wall wart power brick; using a different one ended the constant elec pulse shocking effect. (at first i thought it was the shitty fraying usb-c cables apple provides which turn yellow and the plastic breaks apart after 6months to a year - nope! that thing is fine).