asian flush or am i just a lightweight?

drank for the first time and experienced facial flushing and my head felt fuzzy and lightheaded. i drank half an arizona hard iced tea (5%). i drank it kind of fast (in 15-20 mins) but i felt kind of shitty after. these symptoms went away in about an hour or two.

i am a female, 5’3, 107 lbs. is this a normal experience for first time drinkers (am i a lightweight), or do i show signs of the aldh2 deficiency? i am half chinese. how do i figure this out? any thoughts would be appreciated.