There are a number of general symptoms that a diabetic may have, among them:

• Sudden vision changes
• Very dry skin
• Feeling tired all the time
• Extreme hunger
• Excessive thirst
• Unexplained weight loss
• Tingling or numb feet or fingers
• Sores that are slow to heal
• Frequent urination
• More infections than usual.

If you are experiencing any of these symptoms you do not necessarily have diabetes, but it is worth consulting your doctor.