pulsing in the left upper eyelid?

[Grillwise]

I have more recently gotten these ticklish sensations in my body, throughout my body. They happen at certain times and are quite pleasurable. It's like the moment you go over a roller coaster, when it starts down the hill. That first instant of rush is how I feel at times. It just happens randomly, though I sometimes wish it would happen more. It's so nice, and is quite blissful.

From my experience, the more ticklish sensations are positively oriented, whilst the pulses are worrisome or oppositely polarized.