Need advice from other moms as this is all new for me. I couldn't keep my breakfast or dinner down…

Need advice from other moms as this is all new for me. I couldn't keep my breakfast or dinner down today ,not for a long period. The thing that I managed to keep down was dry Fruity Pebbles. I also had a peppermint mint and a jolly rancher but besides that nothing. Also been drinking water of course. Should this go away or should I mention it to my doctor at my first appointment on Wednesday?