Bonnie, I agree with Tina.
Not keeping fluids down is serious, and vomiting over this period of time can also upset your electrolyte balance - which apart from making you feel more sick, can be dangerous. I too would go to the ER. I don't know if things work the same for you as they do here- but often it's possible to see your GP, who can write a referral letter (even if just a short note to say you've had a month of N/V) addressed to the ER doctors.
I hope that you are feeling better soon.
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