baby wont feed :(

My baby is 2 weeks and her feeding has decreased significantly. I am producing faster but she only drinks for about 5-10 min and then vomits it. We tried bottle feeding as well and she wont take it. Any advice on how i can get her to feed more? Its really hard to wake her up to feed as well, she will wake up to drink and then vomit. I try burping her she still is vomiting. Could she be sick?