There are many things that could make your urine smell unusual. If it is a sweet smell like fermenting fruit then it can definitely be caused by a high sugar level in the urine. If that is the kind of smell you are experiencing then you might buy a meter for testing sugar in your blood. Walmart sells the Relion meter for about $10 and a box of 50 strips for a little over $20. Test your blood in the morning before you eat anything. If the result is more than 7.0 then you should see a doctor and be tested for diabetes.