What will be the symptoms if i have diabetes mellitus? 28 year old female.

Many . . .: Frequent urination, unusual thirst, extreme hunger, extreme fatigue & irritability, frequent infections that are slow to heal, blurred vision, tingling/numbness in hands/feet, etc. Check out http://www.Diabetes.Org/diabetes-basics/symptoms/?Loc=dropdowndb-symptoms, http://www.Mayoclinic.Com/health/type-1-diabetes/ds00329/dsection=symptoms & http://www.Mayoclinic.Com/health/type-2-diabetes/ds00585.

Three major symptoms: Polyuria, polyphagia, and polydipsia. That's our fancy way of saying you are peeing all the time, very hungry, and could drink water all day. Those are a few of the most common symptoms... and if you're having them, I would suggest a discussion with your doctor.