good sugar clinics near me What are 10 warning signs of diabetes? 7 Early Signs of Diabetes You Shouldn't Ignore Ten warning signs of diabetes include frequent urination, excessive thirst, increased hunger, unexplained weight loss, fatigue, blurred vision, slow-healing sores, numbness or tingling in hands and feet, recurrent infections, and darkened skin patches like acanthosis nigricans. These symptoms can indicate high blood sugar levels, which impair the body's ability to process glucose properly.