How To Cure Sudden Occurrence Of Dizziness,headache And Swelling Of Throat?

I was laying down on the floor and when i got up i was dizzy. So i just when to the bathroom and came right back to laying down. I started to tremble and my head hurt and i was tryih to fall asleep.i think i fell asleep for about 8 minutes and when i woke up i was all sweaty.so i just layed there but my fever was kinda over. I when to sleep now that i woke up my thoat is swollen and im soooooo thirsty but when i drink water it hursts so much