Eye twitch means that your upper eyelid muscle has an involuntary muscle spasm causing a fluttery sensation. Generally, myokymia is idiopathic. However, everybody occasionally experiences eye twitching, which is attributed to lack of calcium. Generally, wait a while and it tends to resolve on its own. Besides, you can benefit from a balanced diet with more food that highest in calcium, such as cheese, sesame seeds, almonds, flax seeds green leafy vegetables, yogurt , milk and other dairy products. However, if eye twitching is constant and days when it is not present at all, as if there are periods or relapse, your should take the possibility of multiple sclerosis. Well,you can not know that for sure without any tests.