throwing up after drinking

hi! so i’ve had this problem for about 6 months now where any time i take a shot, it can be anything— vodka, tequila, rum, i immediately throw it up about 10 seconds later. there’s nothing i can do to prevent it, and typically i will throw up everything i drank, even if it’s a small amount. (i’m 18 and a college kid, so i only drink once or twice every few weekends).

when it comes down to spiked drinks like Smirnoff Ice, or Twisted Tea, i can sip it on them without throwing up, but if i want to take consecutive sips back to back, it’ll come right back up. By the time i finish the drink, whatever is in my stomach settles and i throw it up by the end of the night or the next morning.

why is this? is there some medical problem i should be aware of? maybe intolerance?

thanks for any help!!