My electrolytes are all in good shape. I first started getting fasciculations back in 2000 - a gradual onset over a few months until I reached a point that I was having several hundred per day - in large muscles - totally visible to anyone. This lasted about 3 weeks. Also other neuro symptoms during this time like heaviness of legs, fatigue and some others. During that 3 week time period, I also burned my arm on the woodstove but was unaware that I was burning it until I smelled the burning flesh. These fasciculations resolved. Neurology exam was completely normal (albeit it was not until after that 3 week period of intense fasciculations). Then didn't have any for about 14 years - started in late last year though never at the level of 2000. I sure wish I knew the cause. I've done lots of research.