It is very common for patients to approach doctors complaining of low blood sugar. It is essential to understand two crucial information before you think that you have hypoglycemia ( or low blood glucose)
1. The common symptoms of low blood glucose are trembling, palpitations, sweating, anxiety, hunger, nausea and tingling. If unattended, it may progress to confusion, weakness, drowsiness and vision changes. So, just constant fatigue and exhaustion may not be symptoms of low blood glucose levels.
2. Although the fasting glucose for healthy adults is in the range of 70-100 mg/dl, most healthy adults may not feel any specific symptoms even if the glucose dips below 70 mg/dl. The healthy body has corrective mechanisms to keep it functioning normally. However, when it goes below 55 mg/dl, people may start experiencing symptoms of hypoglycemia.
If you experience documented low glucose levels below 55 mg/dL, you should consult an endocrinologist. The tiredness and exhaustion that you have mentioned may be a sign of a different disease, and you should not attribute it to the blood glucose. You should meet a doctor to understand that.
Dr. Mathew John, MD, DM