taste buds are gone!!

For some reason everytime I take my prenatal vitamins almost instantly I get nauseous..i don't like to smell food. I'm a huge IHOP fan and go there like twice a week and just the thought of it makes me want to throw up. Now I'm 9 weeks pregnant and I haven't dealt with this before. Any tips or clues of what is going on? I'm also going threw a sickness like stuffy nose and a little sore throat. It's like my taste buds are just gone. Should I stop taking my prenatal vitamins?