My eye sometimes twitches. don't have any eyeproblems so why does this happen? it's an uncomfortable feeling.

Maybe myokymia: Trembling of an eyelid, which happens in normal people, is called myokymia (an involuntary, spontaneous, quivering of a few muscle cell bundles within a muscle). Myokymia starts and stops spontaneously. In the eyelids, it can last a few minutes to a few days. One should see an ophthalmologist (md eye doctor) if such symptoms persist, keep recurring, or are combined with any other symptoms.

No good reason: I get it, too. Dont sweat it. Cut the coffee a little, maybe.

Myokymia: You are describing myokymia - an involuntary twitching of the skin around the eyelids. It's believed to be related to lack of sleep, stress, and caffeine use. Change these risk factors and it should abate.