Early symptoms

Makenzie • Due with baby #1 in Feb '18 😇❤️
So I'm 5 dpo and I've been nauseous for days now. I'm emotional, tired, my boobs hurt, veins are popping like crazy. I almost passed out during a workout, which never happens. I have no appetite, which is unlike me. And after every time I eat I feel sick to my stomach. I took a test, it was negative. Idk if I'm just crazy or what..