Could I have diabetes?

[nicfanz]

For the past week, I've had really bad breath (sour and similar to morning breath) that lasts the whole day. I've noticed that it happens after I drink something sweet (soda, fruit juice) but doesn't happen when I drink water or diet soda. Could I have diabetes that my body can no longer tolerate sugar since this never happened before. I've never experienced excessive bad breath from drinking sugary liquids until now.

[JDRF-VOL-SG]

People with undiagnosed (and therefore uncontrolled) diabetes do often have a sweet-smelling breath in an unpleasant sort of way. Some people also mention a coppery smell if the person's sugar levels are high enough that fat cells are being burned off. Do check the following list of symptoms to see if you meet any other symptoms of diabetes:

fatigue
thirsty
hungry all the time but doesn't gain weight (may lose weight)
frequent uination (because you are drinking liquids all the time)

I would suggest that you see your doctor and have some blood tests done (he may also want to check for digestive tract problems), and also perhaps to see your dentist in case you have a dental problem that is causing this odor.