VOMITING.. is this safe?

Hey mamas so I’m 5+4 today and so far I haven’t been vomiting at all just feeling nauseous but today I woke feeling so sick as usual can’t eat anything. water is essential during pregnancy but in my case it’s not working for me. i took my prenatals and also tried drinking a glass of water and soon as drink I throw up water.. then like an hour later I drank some more water and threw up again. my throw up is all water and little food particles. I haven’t really eaten anything because everything taste nasty. nothing can go down my stomach what can I do? because I am starving and can’t eat & also even water can’t go down. but something I have been eating to help me with my nausea is sour skittles is it safe during pregnancy? just wanna make sure.