Non stop vomiting after drinking heavily

Feel a bit dumb asking this question because we are old and first time experiencing this.

Long story short. Wife in early 40s got together with her sister and they started drinking at home.

That night wife had a massive headache and began vomiting non stop almost every hour for 10 hrs. Once she started shivering I took her to the ER

they gave her nausea, and pain medication and iV fluids. After 30 min she was back to almost normal.

Hospital didn’t tell us much.

We both have never experienced this amount of vomiting or the shivering before.

Was this alcohol poisoning?

Thanks for the help and yes we felt embarrassed to tie up an ED bed.