I am feeling sick i dont know why?

since two days i have been feeling very weired i have been throwing up.My stomach feels weired. My mouth is sour my eyes are tripping, I feel like i have been up from alooot of days or i feel like i am on drugs and comming down. my head is hurting i am not pregnant because i have iud and i just got off my period. i tried going to the doctor but they didnt have any appointment for me. My aunt told me maybe i have stomach flue but does that make u feel like u have been up for hella days i cant get up to takecare of my kids because my mind is num even though i sleep fine at night time. plz help me and tell me what it could be