one of my eyes has been sporadically twitching for days now and i genuinely thought that was only a thing that happened in cartoons to show you're losing it. well then. 
I get that periodically. Usually when I haven't noticed how stressed I am.
that... yup, that makes sense now 
It's really disconcerting but afaik not harmful
Maybe see if you can set aside a little bit of time to meditate or just breathe quietly for a few minutes?
lol could also be wonky electrolytes, i get that all the time and it's only occasionally a stress thing for me 