Patients with high blood sugar can be considered pre-diabetic. At this time, patients can have the following symptoms, and the symptoms vary greatly from person to person, there can be excessive drinking, drinking more water, more meals, increased urination, weight loss, but also easy to fatigue, fatigue, dizziness, headache, mental instability, can be manifested as the clinical symptoms of prediabetes. If the patient is not feeling well, go to the hospital as soon as possible to understand the condition, and under the guidance of the doctor, do not blindly use medication and jeopardize your health.