Blessings and be well.
I used to get a twitch under one of my eyes several years ago. What I learned really surprised me. The twitching went on for quite a long period of time before I decided to go to the doctor. I went to a neurologist, and went through the works, including a brain scan. He told me it was from stress, and there was nothing physically wrong. I went to UCSF Medical Center, because I didn't believe him about the stress. There they confirmed his opinion, after a battery of several more tests. They told me that it was very common for this to happen to people who don't pay attention to their stress... your body will make you listen in physical ways.
I was beside myself, because this seemed so bizarre to me...I didn't particularly FEEL stressed, but, in retrospect, I know I was. I was in a very dysfunctional, chaotic marriage. I took Tegretol for awhile, which controlled it, but quit taking it. It came back. Another year or so passed and I left my husband. The day I got on the plane and arrived at my destination was the last time I have ever seen that eye twitch.... that was almost 15 years ago.
Amazing to me.