Natty Daddy’s give me terrible hangovers

last night i bought two natty daddy’s just for the hell if it, i drank one and a half and by then i was totally plastered, to the point that i was already feeling sick, there was nothing nice about the buzz. when i woke up the next morning, i felt this terrible anxiety, worse than pretty much any hangover ive experienced. my stomach was really messed up too. i can drink 5 or 6 shots of vodka or whisky and im fine, so how is it that only two beers messed me up that badly? maybe the extra sugar content?