Throwing up everytime I drink liquids?

Not pregnant, Last night I started getting nauseous and starting this morning I drank some water and threw up now every time I drink something it starts a couple minutes after. I just took a unisom with a sip of water and then the vomiting started again. I haven’t even tried to eat because I know I won’t be able to keep it down. This rarely ever happens to me. Does anyone know what this could be and any suggestions?