Hi, my name is Brittany and I am 15 weeks pregnant. Every day around noon I feel extremely light headed, my hands start shaking really bad, and my arms go weak/numb, I feel like I have to sit down immediately or I feel like i m going to panic or vomit. I also drink water when this happens. I was thinking it could maybe be an iron deficiency, or? I dont know. Its freaking me out.