Please HELP!!

My daughter turns 6 months on the 3rd. And she suddenly won't eat! This started yesterday. Usually I feed her solids at 1030am and 530pm and nurse her roughly 9am, 12pm, 3pm, 6pm and 9pm and then throughout the night if she wakes up. However she didn't eat anything yesterday until 330pm she nursed, refused solids all day today and yesterday. She took a bottle last night 6oz. She basically ate 3 times yesterday and 3 times today, no solids! She didn't eat at all again this morning, not until around 130pm. And she refused a bottle this evening so I tried nursing her and she just refused! She cut one tooth already. Can anyone help me? What's your experience with this?