In the first peer-reviewed article on ASMR, published in Perspectives in Biology in summer 2013, Nitin Ahuja, who was at the time of publication a medical resident at the University of Virginia, invited conjecture on whether the receipt of simulated medical attention might have some tangible therapeutic value for the recipient, comparing the purported positive outcome of clinical role play ASMR videos with the themes of the novel Love in the Ruins by author and physician Walker Percy, published in 1971.
Sounds like just normal. When you feel it you know it. That jumping around sensation can start just like yours did. Mine starts at the base of my neck traveling up like the hairs on the back of my neck are standing up, but more relaxing and very nice. Feel like giggling inside, then shoots up to my scalp and down my arms and waves travel everywhere. Whole thing can be over in a few seconds. Experiencing the trigger over again still produces symptoms but maybe not so much/or in different places. You get to feel kind of drugged. I may not feel it if I listen to a song I love from beginning to end, but will if it’s a snippet of the chorus or lead up to it. A few minutes ago I got triggered from hearing a sample from iTunes of a song I bought recently. That song has a lot of trigger types in it. Sounds like whispers or gentle waves, light tapping beats, breathy singing, violins.