6 DPO

Long post, but I like to give background. I'm on day 6 past ovulation, my cycle is weird and I'm due to start my period today. Definitely have sore breasts and some cramping yesterday but I figured it is probably pms. I got really faint, hot, and dizzy 3 times last night at work, and a few hours ago began severe nausea and now vomiting.

I am an L&D nurse and asked the midwife I was working with if it was possible to feel awful this early and she said yes, but not likely.

I feel like I could just have pms and be getting a bug or even the flu.

How many of you felt symptoms early on? Did it just hit out of nowhere?