I used to get this. I asked my Neuro about it and he said the same thing, River. Stress. I said I wasn't really stressed about anything. Well, except my eye twitching! As hard as it was to do I just quit thinking about it. Ignored it. After a few days I realized that it had stopped. I don't know how long it had stopped before I noticed because I quit paying attention to it. I hope yours goes away soon!