Can anyone help me. FTM

My baby is around 6MO just yesterday she started thowing up during the night out of no where. When we fell asleep she threw up once more while sleeping. This morning we thought everything was over with. I gave her today her normal eating which was her formula then her gerber. Hours later she threw eveything out again. I made an appt for her but they won't be see her til Thursday. So my other choise is taking her to the hospital.

Idk whats wrong. Is it because she starting solids? Is it cause shes trying new foods. Shes never been like this. Idk what to think 😟