Constant dizziness and fainting

Stasha • Sun, Mar 08

I keep getting dizzy spells. I get plenty of sleep, drink about a gallon of water a day, and regular meals and snacks while watching my sugar and salt intake. When standing or laying down, my face will get hot and cold, I'll get dizzy and almost pass out. I'm 18 weeks and it's been like this since day 1. This can't be normal.