Could you elaborate on that? I've only ever heard ASMR described as being pleasant. What you might be talking about is frisson, which can be caused by hearing beautiful music or anxiety. Either way, there has always been much confusion between the two feelings, but its generally agreed that they are distinct.other times it is oddly foreboding and unsettling.
Well, again, as I don't usually seek it out, it's hard to explain. The few times it has been negative, it's been a pretty obvious trigger. The last one I can remember off the top of my head is a few months ago, at the art museum on my campus, there is a piece there that is essentially just a giant shaped block of sea salt, and the artist encourages people to touch it, the piece is supposed to represent how everything changes, or something similar, and for some reason it makes this soft hissing when some of the salt collapses and runs down the side, and that triggered it. I immediately felt anxious and kind of hurried through the rest of that room.