Symptoms of water intoxication actually look a lot like the symptoms of
alcohol intoxication, including nausea, altered mental
state, and vomiting. Also headaches, muscles weakness and convulsions. In severe cases, coma and death.
Your high water consumption can be from anxiety or because of a physical reason. You need to immediately see a doctor, tell him of your situation, including the alcohol, and get a complete blood workup. And of course get your blood pressure checked.