I get this too, for example I was in an empty parking lot one day and heard people like I was surrounded or in a crowd with a bunch of random talking. It was extremely disorienting.

Mainly I deal with spirits, they've followed me for years. They say different things, most of the time it's not very bad stuff but it's very distracting and noisy. I did have some bad stuff being said though a few days ago, I thought it was a demon or the devil talking....I've never had that particular one happen ever before but it freaked me out.... I wasn't doing well for awhile so symptoms were getting bad