The money is not wasted if you catch Diabetes in its early stage *if* you have it. These symptoms can indicate everything from the flu to other diseases - only a doctor's blood workup and a C-Peptide test will indicate for sure.
If you are not diabetic, the money you spent will put you at ease and you have nothing to worry about. Have a great life.
If you are diabetic, the money you spent may have just saved your vision, kidneys, heart and ultimately your life.
Diabetes is serious. It will cause other ailments that will kill you. See a doctor, find out. That's the only way to turn "not sure" into "for sure."
We're volunteers here & not physicians. Based on your age, I'm not sure we can legally answer your questions here, but please have your parents get you to a doctor to be evaluated.