Helppppp!!!!!

steph

Ok I found out today I am 4 weeks pregnant I felt dizzy and almost fainted; with my last 3 I never felt like this. I had to do labs today so I came home ate 2 slices of pizzas, I haven’t been feeling hungry this pregnancy I eat but not enough. I told my doctor but for every scrap and nail always sends you to the emergency room. I was wondering if anyone has gone through the dizziness is it normal?