sweet smelling urine can be an indication of diabetes. Definitely you should go see a dr and have your blood sugars tested.
Let us know how you go.
You need to lay off the sodas. No offence but If you pee often and it does smell sweet means you have high levels of sugar in your blood. Which is called DKA- Diabetic Ketone Acidosis In the long run you'll loose weight, but your body will eat itself if you don't get your blood sugar levels under control.