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Low blood sugar symptoms

Low blood sugar symptoms

Overview

Symptoms such as weakness, feeling tired, shaking, sweating, headache, hunger, nervousness and irritability are signs that a person's blood sugar is getting dangerously low.

A person showing any of these symptoms should check their blood sugar. If the level is low (70 mg/dL), a sugar-containing food should be eaten right away.

Review Date 5/13/2023

Updated by: Sandeep K. Dhaliwal, MD, board-certified in Diabetes, Endocrinology, and Metabolism, Springfield, VA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.