It looks like some great special effects for a horror movie.

Thankfully, I've never experienced a cramp quite like this. And I hope I never do. At first, when he starts recording, it looks painful, but it's still. THEN it starts to almost pulsate. That's when you know he's in some for real pain!

After it starts to subside, you can almost feel the relief through the screen. Of course, it starts again cause it looks like he moves that muscle, which, from what I've learned, is a big no no.

OUCH!