ASMR?
Autonomous sensory meridian response (ASMR) is a tingly experience characterized by a static-like or tingling sensation on the skin that typically begins on the scalp and moves down the back of the neck and upper spine, precipitating relaxation. Though it is usually a tingly feeling, it is also sometimes a feeling of sleepiness. How this feels might be like walking outside on a cold night and your hair stands on end from the cold. It has been compared with auditory-tactile synesthesia.
Autonomous sensory meridian response (ASMR) signifies the subjective experience of 'low-grade euphoria' characterized by 'a combination of positive feelings, relaxation, and a distinct static-like tingling sensation on the skin'. It is most commonly triggered by specific acoustic, visual and digital media stimuli, and less commonly by intentional attentional control.
Thanks, Wikipedia.