Is this Neurogenic tremors

I have been doing Yin Yoga and found myself lying awake in middle of night and all sudden there is this fast shaking - almost faster than I could try to do, but definately not scary or a seizure. Just like a loosening of those areas, and an allowance to freely move in way I cant ever recall doing (brain is not involved). It just happens. I was wondering what it was and was directed yesterday to TRE as a YouTube option with Yin, and Neurogenic tremors came up and I thought huh - i think thats it. Thoughts? Thanks!