So a twice this week, and a few times in my life prior, I would get this intense muscle tensions in my left calf. It's always the left for some reason.
This morning it was 3am and I stretched my legs, and as you know when you stretch your leg, your toes point. Well when I do that, I move my toes as well and immediatly, my calf tenses up painfully and I feel like I can't move it, for a good 30 seconds.
By then I'm wide awake, waiting it out.
If I love my foot or my leg, it hurts worse, I have to keep it still and it will go away.