Merry Meet Xiao Jun,
Well although eyes twitching is a sign or omen however at times it
may be due to lack of sleep, stress or fatigue. If you have not
been resting well, it can be due to these factors.
Pertaining to twitching of eyes, what signs or omens does it
portend, it varies with different cultures. In the perspective of
Chinese Cultures & Beliefs, its dependable not only whether its
left or right eye twitch, the hour when it twitch holds the key to
whether its good or bad. For your case i see it more like a sign or
omen that you are facing some difficulties in accomplishing some
tasks or issues, not to worry at the end of the day if you put your
mind & heart to it, it will bring success. Hopes these are of
help to you. Thanks again.

Blessed Be,
Oceanos