Dear i can understand your concern in my opinion you might be pre diabetic is suggest you doing test called Hba1c% and GTT for further evaluation and discussion i would like to tell you regarding diagnostic criteria of diabetes the diagnosis of diabetes requires one of the following: • A fasting glucose ≥ 126 mg/dL; • A hemoglobin A1c level ≥ 6.5%; • A random glucose level 200 mg/dL in a markedly symptomatic patient(symptoms like increased urination,thirst,weight loss,blurred vision and non healing ulcers. daily exercise for 45 min and control diet. meet a dietitian for better advice. i hope life style changes can revert back your prediabetes as you are very young regards