Mostly internally. Tears I quickly and as nonchalantly 'as in an itch' scratch away. I often have the sensation quite painfully of a tiny 'knife' slowly glide/slice down from the back of my throat, down to my heart, it stabs, then all down through my belly and leave with a flick through the scrotum. It happen when I see pain an sorrow, accidents, hurt, emotional disstress. I'm sorry if this offends but it is how it feels and where.
I also cant see soap (intrigue) and videos of pranking people or heated argumentation, cant be around people that has loud voice due to excessive alcohol consumption and a lot of other things, even sexy females looking at me (I orient myself as simple male). It all saturates different parts of my internal makeup, trigging me to run away. Sometimes my personal comfort space is 10 meters (30 feet). I tend to not look people in the eyes to avoid saturation.
On the outside I'm ugly as normal, calm, inside can flow like a river or roar as a fire-tornado.
I'm not sure if this is what you asked about, it did make me think about this, thus I did tell it.
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Regards/ttfn/Cheers/Mvh/Heioghå
(pick the one suiting you)
Gaffer Gragz
Entity of our preposterous universe
Citizen of Earth