Alright. Bear with me. I'm trying to find out what I'm activating here. It's not the vagus nerve precisely, since I've isolated that and am very familiar with the results (pounding heart, instantly dilating pupils, etc.). This sensation is almost like I'm gently building pressure inside my head and chest. If I hold it too long my eyesight begins to fade and the instant I stop activating this -sensation- my skin feels hollow and cold, and my heart pounds hard, yet really slowly. Then I feel extremely calm, like I just ate an amazing meal or won an argument. It's not the goosebump activator, either, as my skin feels slightly warm and tight while I'm doing it. My neck muscles, to my great disappointment, are apparently obligated to become tense while I do this. I've tried to isolate them and keep them relaxed but that seems to diminish the entire sensation for some reason. Perceptually, I actually get strong images of my brain and spinal cord sort of being aerated or having gentle cold water immersion taking place. So warm skin on face and chest, cool feelings inside CNS (which has no innervation, it's just perceptual, could be the dural tissues or other). I also shiver slightly sometimes if I do it just right. Like I heard a ghost whisper in my ear, that kind of shiver. No emotion attached to it, though, just sensations. Any ideas?
