1. My legs are asleep.

2. I am cramped in my legs.
3. I got cramp in my legs.
4. I got a cramp in my legs.
[Can we use all the expressions? Which ones are commonly used? Are they the same in meaning?]

3 answers

1 and 4 are fine. 2 and 3 are not used.

You could also say/write these:

I got a cramp in my leg.
I have cramps in my legs.
My legs have cramps sometimes.
Okay. Thank you.
You're welcome!