Facial nerve damage?

[Martinus]

Did you go to a doctor? Fainting isn't normal in and of itself and should be of immediate concern.

There are lots of forms of benign fasciculation that can cause twitching or tightness occasionally, if it is persistently happening over several days that could be a concern, though.

I went to a doctor about the fainting. Neither a cardiologist nor a neurologist found anything out of order but I will get a EEG scan just to be sure. I fainted after missteping and straining my ankle, so the pain with the heat apparently can be a common cause for fainting like this.