He wont stop vomiting. Please read!?

About 10pm my boyfriend and i finished a bottle of rose champagne together. He had more than half the bottle but didnt feel the slightest bit tipsy or anything. Then he suddenly started vomiting at 11:30pm. It is now 4 in the morning and he has been vomiting every 15-30 minutes since then. And he feels perfectly fine after he vomits. He is drinking lots of water and sipping on soda. Is it the champagne or something else? Any tips? Thanks for reading.