Can’t keep anything down

I’m currently 14 weeks and for the past 4 days I’ve been throwing up all day long and can’t eat or drink anything bc i have absolutely no appetite and i end up throwing it all back up. Sunday night i started to feel super dizzy and weak so i went to the ER to get fluids, assuming i was dehydrated and that’s why i felt that way. They gave me some fluids and sent me home. I felt a little better, but now I’m back to the same issue. My whole pregnancy so far I’ve had morning sickness all day but would only throw up first thing in the morning. Now it’s all day long and i can’t even get up without feeling dizzy. I just don’t know what to do, i feel bad since I’m pregnant and i haven’t been really eating anything or been able to keep any liquids down. Anyone else have this issue?