based on what you said, I think you are a typical teen and do not have dieabetes.
It does sound like diabetes, but without the test you can t be sure. Generally if you are not born with diabetes are didn t develop it at a fairly young age you will have type 2, which is controlled by diet and exercise and possible pills, but not insulin. It is also easier to reverse type 2 diabetes. which would be good given your age. So if you are make sure that you follow your doctors orders and take very good cake of yourself
I raised a couple of girls as a single parent and you sound just like them! I also do not believe you have diabetes - you are a teen that s hungry and thirsty all the time and can sleep around the clock! Let the doc check you out - you re in good hands with an endocrinologist - and go with his/her findings. Best wishes to you for a long and happy life!