To start off, stop drinking 1 quart of Gatorade. It isn't really to quench thirst when you're just randomly thirsty, but to replenish electrolytes as well as quench thirst after playing sports. The high amounts of sugar found in Gatorade also won't help if you have diabetes.
Answer the following:
Do your feet get cold after physical activity?
What is your diet?
How often do you urinate?
What is your average blood pressure?
Also answer these, and go see your doctor, as well as talk to your parents.
