Type 1 Diabetes | Johns Hopkins Medicine
www.hopkinsmedicine.org › diabetes › type-1-diabetesType 1 diabetes often appears suddenly. Symptoms may include: Unusual thirst; Frequent passing urine; Extreme hunger but loss of weight; Blurred vision; Nausea and vomiting; Extreme weakness and fatigue; Irritability and mood changes; In children, symptoms may be similar to those of having the flu. The symptoms of type 1 diabetes may look like other conditions or health problems.