i am a 120lbs, 18yr female. would it be abnormal if 1 hefty shot of 16% alc got me drunk?

i have not eaten today (anorexia), just got off antibiotics (amoxicillin) yesterday, and i am an hourly weed smoker. would it be abnormal for me to feel drunk after one large shot of 16% alc? i used to be a heavy drinker, but after taking a break for months i have just had my first drink in a while and feel incredibly tipsy already. i have just smoked a bowl (weed), so that could definitely contribute as well. should i be concerned or am i probably just cross-faded? i also have a medical condition that would not harmfully interact with any of the listed above that makes me have vertigo quite regularly. i am NOT looking for judgement of my decisions, but just an answer to my question.