Hello and thanks for your question.
You have just described one of the most common complaints that I receive in my clinic everyday. It is common, but nonetheless very annoying.
Eyelid twitching is a sign of generalized irritation or fatigue. Its triggers vary from person to person. For some it is using their eyes a lot (excess reading, TV, computer work). For others, the eye may be dry, have allergies, or they may be rubbing their eyes a lot. For many people, there is no identifiable cause, which can be the most distressing.
This is rarely due to any significant pathology, but I would say if you go another 4-6 weeks with this still going on, then it may be worth your while to see your ophthalmologist to get a full exam to determine if there is anything wrong that can be treated.
What you can also try in the mean time is a trial of artificial tears. This may help treat an underlying dry eye which may be causing this. To make artificial tear therapy work, however, they must be used consistently: 3-4x/day, everyday for at least 3 weeks, better 4. If you only use them when you feel like you need them, they won't work.
Does that help address your concerns?
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My opinion is solely informative and does not constitute a formal medical opinion or recommendation. For a formal medical opinion and/or recommendation you must be examined by your doctor.