Having the worst hangover 😫 Help!

Had 540ml rum yesterday night, Woke up to see my pillow covered in vomit

I was shocked when friends told me I fell unconscious on road and wasn’t responding for 2-3 mins, they somehow managed to carry me to the room…now the pain I’m going through makes me feel like wish I was dead yesterday 😣 I’m vomiting since morning I tried eating banana it came back right away , tried coconut water I threw up again, my body isn’t even taking water , I throw up within minutes after having water

I’m afraid of hospital bills and my friends ain’t taking it seriously

Please tell me I will recover overnight 😭