What could this be?

[Tripadvisor101]

A few times over the last few days I've had a second or two of getting weird sensations e.g. my thigh skin suddenly tingling, a foot going numb, feeling dissociated. It's only been for a second or so but it's happened a few times. Any ideas of what this could be?

Sciatica? Have you hurt your lower back recently?

Definitely sounds like Sciatica( I actually have a flare right now)
It’s literally a pain in the bum
Have you twisted or stretched awkwardly?
You need to be seen really if you can get a GP appointment
The GP can prescribe painkillers which work on nerve pain, such as amitryptiline if they agree that’s what you have.
it’s very painful so you have my sympathy.

I'm not in any pain. Just weird sensations.
I don't think I've hurt my back recently.

It's weird. It's like my body skips a beat for a second..