I don't work out, i mean at all. But today i wanted to do some push-ups for giggles and my left forearm just felt really weird when i was putting weight on it, like the bone was 'vibrating?'
It wasn't the muscle, i don't think because that eventually got tired too. It was a very singular sensation.
Also, I need to start working out. Holy fuck I'm pretty skinny, but in really bad shape.