The signs and symptoms of diabetes are - being very thirsty - urinating often - feeling very hungry - feeling very tired - losing weight without trying - sores that heal slowly - dry, itchy skin - feelings of pins and needles in your feet - losing feeling in your feet - blurry eyesight Some people with diabetes dont have any of these signs or symptoms. The only way to know if you have diabetes is to have your doctor do a blood test. 
What are the symptoms of Your Guide to Diabetes: Type 1 and Type 2 ?