I only heard about it recently, and did not think I ever experienced it/was capable of experiencing it. I was reading the /r/asmr reddit the other day, and saw a reference to "the goosebumps you get from really good music", and then got an ASMR-like response. Not sure if it was a true reaction, and I was listening to music that wouldn't fit with the usual description of ASMR triggers. I'm pretty suggestible I think, so it may have been the effect of remembering "really good music goosebumps" and then overreacting to that.
If it's worth saying, but not worth its own post, even in Discussion, it goes here.