Not wanting water is a very common symptom, even for those who are not fasting. It takes an intensive physical exercise to fix this problem.
But with nausea and particularly vomiting you probably cannot exercise.
Are you doing enemas (colonic irrigation) and everyday showers at the moment? These are detoxifying procedures.
Because what you describe sounds very much like intoxication after a successful Liver Flush during your fast. If it is true, then everyday enema will sort the problem out in two days.