Too soon for symptoms?

Nicole
I'm typically 6 weeks apart for my AF. But I'm going on week 5 and I am sick to my stomach all the time, have a weird metallic taste in my mouth when I think or see food, but yet hungry all the time. I sweat like a man and can smell everything at a heightened smell. And I mean everything. I'm dizzy and could come home from work and sleep til the next day. 
Is it too soon to have any symptoms? Or am I being crazy?