I experience this occasionally. The strongest occasion was approx 12 years ago. I was in the “High Country” NE Victoria, North of a town called Mansfield. I was out hunting Sambar Deer, 10 K’s from my off sider and in open bush land. About 1 Hr prior I came across droppings from wild dogs which were prevalent in the area and a real problem for farmers. I had this sensation all over my head and down my neck, it scared me. I had the feeling someone, something was watching me and was a bit shaken. I pulled myself together and continued my hunt. Never came across any deer or anything else that day.
ASMR is usually precipitated by stimuli referred to as 'triggers'. ASMR triggers, which are most commonly auditory and visual, may be encountered through the interpersonal interactions of daily life. Additionally, ASMR is often triggered by exposure to specific audio and video. Such media may be specially made with the specific purpose of triggering ASMR or originally created for other purposes and later discovered to be effective as a trigger of the experience.