A dehydration is a very likely reason for your condition. It is vary important to maintain a proper
level of hydration by drinking at least 8 8-ounce glasses of water a day.
Dry mouth is medically termed as xerostomia. To cure dry mouth avoid alcohol and smoking. Brush your teeth with fluoride toothpaste and maintain regular dental visits.
Most likly you have allowed yourself to get dehydrated. Suddenly your body feels it. Is your nose blocked up?? Are you breathing through your mouth? Have a blood glucose test.
Any symptom that comes on suddenly that concerns you should be discussed with your doctor. Your doctor would be in the best position to know if the symptom was serious.
You must have a water available on hand. Or a piece of sugarless candy will help alleviate dry mouth. Rehydrating more often will minimize the occurence of dry mouth.