Constant twitch on forearm

Has anyone had a constant every second twitch on their right forearm. I have other twitches which are mild in my thighs calfs shoulders but since last night my forearm has been twitching like crazy. Just near the elbow but inside of the forearm.

I can even see it twitching visibly. It’s not like a twitch which comes every 5 seconds it’s there every second. For the past 15 hours. When I move my arm it sort of goes away or I can ignore it but as soon as I rest my arm it starts.

Has anyone experienced twitching at this frequency before?