Yahoo Lifestyle 
WATCH: Crazy footage of guy's leg cramp after a workout
Warning, this video of a guy suffering serious leg cramps after a workout may cause you to never want to go to the gym again!
The leg cramp is so bad you can actually see the muscles moving in his leg - like, IT'S ALIVE!
Angel Bermudez, from California, posted the video on Facebook and it’s since had almost 5 million views.
“After the workout. Start to relax and then this happens. F**ken cramp. Look at this sh*t. Painful yes it was,” he captioned the video.
It’s both terrifying and mesmerising to watch, but hell, that must have hurt!
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"This is what a cramp looks like," he says in the video. "OMG it won't stop!"
People couldn’t believe what they were seeing either, comparing the video to a sci-fi movie.
“Wtf are you turning into the incredible hulk right before our eyes,” one person commented.
“It looks like an alien is gonna hatch and pop through your skin any second,” another quipped.
“Omg that's horrible looked like your leg was having a baby!!!!" someone wrote.
Cramps can be caused by both muscle fatigue and dehydration so if you ever feel one coming on here are a few quick tips.
Try to relax.
Gently massage the muscle.
Ice the area to help alleviate the pain.
Move your foot and ankle in a circular motion, which activates the antagonist muscles around your ankle and helps the calf muscles relax.
Stretch your calf, but make sure to be slow and gentle.
Otherwise this will happen!
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