Do i have alcohol intolerance? i got a headache, flushing, palpitations, and very slight trouble breathing after tequila and sangria (first time it has happened). went away after a day. i usually drink chu-hi (9%) drinks. this hasnt happened before?

Try taking tequila without sangria and sangria without tequila and see if symptoms recur. If they dont then it might have been that batch of those products.

is this the first time you had tequila and sangria together? How much did you drink? Were you dehydrated as that could exacerbate responses? Did others have a similar response or were you alone? Do you have other medical conditions like thyroid or stomach problems( reflux or others)? Check for reflux, EKG, blood work/ thyroid F/u/w/ MD .