Just this really, en.m.wikipedia.org/wiki/Autonomous_sensory_meridian_response I don't really know how to post links but I get it when people play with my hair or if people are very softly spoken. Nothing sexual just a lovely relaxed feeling that starts with a tingling sensation in the back of my head. I thought everyone got it until I spoke to dh and he thinks it is odd. I have found on youtube and through google that there seems to be a whole community of people who gets this. Do you get it or is it unusual? It is a lovely feeling but very difficult to explain