I feel nothing.

I'm 5 weeks today and the only reason I know that is from my positive pregancy test and missing my period. My boobs don't hurt, I'm not tired, nauseous or bloated.. I feel normal. 
I miscarried last year and I'm freaking out. I can't help but feel like it's not real. Is this normal!? I'd give almost anything to puke my guts up right now..