Be not alarmed. Eye twitches, which are involuntary movements of the upper or lower eyelid, are a common occurrence. These minute muscular spasms are not painful, and they usually subside on their own. But when they do, it's often a symptom of moderate stress on the body or mind. Twitch triggers may consist of?
feeling worn out
drinking coffee
feeling agitated or uneasy
consuming alcohol
smoking
looking at bright lights
Sometimes the effects of stress come on suddenly, like when you can't sleep because of a job deadline, and suddenly your eyelid starts to twitch to the beat of an unknown drummer. If you're very disturbed by it, a warm compress, a restful night's sleep, or a stress-relieving activity like exercise will usually help settle a twitching eye. You can also limit your alcohol intake, give up smoking, and cover your eyes when in strong light.
Eye twitching is a very unusual indication of diseases like Parkinson's disease, Bell's palsy, or multiple sclerosis. Consult a doctor if one or both of your eyelids close involuntarily with each spasm or if additional facial muscles appear to be involved.
Photo by Engin Akyurt: https://www.pexels.com/photo/close-up-photo-of-right-person-eye-1435823/