Left eye has been twitching.1st the upper lid and now the lower, within a few wks. Could it be hemifacial spasm? I'm 22.If I blink fast, twitchingstarts

No worries . Eye twitching is common, & usually related to stress, lack of sleep, & overuse of stimulants like coffee. The fact that yours "traveled" makes it less likely to be a nerve disorder. Get plenty rest, get exercise, eliminate any stimulants for 2 weeks, & if no better, see your clinician. .