Anyone got explanations for these?

[Surgenator]

These are things I've noticed when I've had too much time on my hands and I wondered if there's a scientific explanation for them.

When I look really really closely at something with little shiny parts in, for example a pillow with glitter or maybe a bottle with a shiny bit of reflection on it, if I wince my eyes I can see my eyelashes really close up, like microscopically close up.

Lens effect.

Another thing is when I look at a straight line I can get my eyes to sort of glide along the line if I go from left to right, but my eyes won't glide smoothly along the line from right to left.

Don't know. I can't reproduce this effect.

2 more that are just a bit vague, when I orgasm I get a tingling sensation in my jaw.

This might be related to the body parts mapping in the brain, or you might have a light version of coital cephalgia.

When I eat apples and bite into them I get this feeling like a inner killer instinct, like I imagine a carnivore feels when it bites into its prey. I don't get this when I eat chicken or anything though.

I get that feeling when I eat ribs. However, I don't know where it comes from. I assumed it's a part from our evolutionary history.

But apples ... no clue.