Im getting twitches just above my left lip, it comes and goes and im experiencing it since last 4-5 days at the same location. ive noticed it comes after i open my mouth like while eating/drinking and stays for a while. can it be something serious?

Need more info: Try drinking fruit juice to correct an electrolyte imbalance, in case that may be the cause. You may watch and wait, it the twitching spreads to other muscles, see a doctor for an in person evaluation. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs.