is having to much nausea and vomiting bad?

Is having to much nausea and vomiting bad for you? I haven't been able to eat or drink anything, I keep trowing up what ever I consume and it sucks I feel so week and tired and my stomach just hurts so much from all that puking , I still haven't seen a doctor since my health insurance hasn't been approved yet and I'm thinking if I should go to the hospital or not 😩😷