I'm not sure how you'd describe a spasm, but how about the leg suddenly goes stiff, then shoots off in all directions and there's nothing you can do to stop it. If there's pain involved, just say so.

The prickle feeling can be described like you've squatted down and tucked your feet under you, and when you get up you have painful pins and needles in your foot or feet.

I don't know if that helps, but sending you hugs.....

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