Hi Boris:

Not necessarily.
One possibility is that that you are struggling with your digestion. Your body will require you to totally slow down so that it can use most its resources for digesting. Digestive enzymes may improve the above condition.
A second possibility is related to levels of blood sugar. Symptoms associated with diabetes are extreme thirst, hunger and urination.
Make sure you check your blood levels just to make sure.

In Health,

Dr. Vinograd