Mood swings..

I'll be 6 weeks tomorrow and I feel like I'm going nuts. My emotions are so out of control and I cry at the drop of a dime. I tell myself I won't let anything get to me but I can get frustrated at the smallest thing. It will ruin my day but worst of all it effects the people around me. After im upset I shut down and shut everyone out. I've never been this emotional so early on in any of my pregnancies. What is going on with me?! Also I can't stop stuffing my face! Hehe