Hypoglycemia vs Hyperthyroidism
Hypoglycemia and Hyperthyroidism are conditions that share some reported symptoms, which can make them easy to confuse. This guide explains the key similarities, how each is described, and how providers may investigate them. Educational content only - not a diagnosis.
About Hypoglycemia and Hyperthyroidism
Hypoglycemia: Abnormally low blood sugar levels causing shakiness, sweating, confusion, and in severe cases loss of consciousness.
Hyperthyroidism: A condition in which the thyroid gland produces too much thyroid hormone, speeding up metabolism and causing weight loss, rapid heartbeat, sweating, and nervousness.
Symptoms shared by both conditions
These symptoms have been reported in association with both Hypoglycemia and Hyperthyroidism.
Excessive Sweating
Sweating more than is needed to regulate body temperature, which can accompany fever, anxiety, hypoglycemia, o...
Irritability
Easily annoyed or frustrated mood, which can be caused by stress, sleep problems, hormonal changes, or mood di...
Palpitations
A sensation that the heart is pounding or racing, which is a non-specific sign but may be a manifestation of a...
Tremor
An unintentional, oscillating to-and-fro muscle movement about a joint axis....
Symptoms of each condition
Hypoglycemia
Confusion
Lack of clarity and coherence of thought, perception, understanding, or action....
Excessive Sweating
Sweating more than is needed to regulate body temperature, which can accompany fever, anxiety, hypoglycemia, o...
Headache
Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve....
Hunger
The sensation of needing to eat, which can be increased by low blood sugar or metabolic conditions....
Irritability
Easily annoyed or frustrated mood, which can be caused by stress, sleep problems, hormonal changes, or mood di...
Palpitations
A sensation that the heart is pounding or racing, which is a non-specific sign but may be a manifestation of a...
Reduced consciousness
Abnormally diminished level of attention, responsiveness, or wakefulness....
Tremor
An unintentional, oscillating to-and-fro muscle movement about a joint axis....
Hyperthyroidism
Anxiety
Intense feelings of nervousness, tension, or panic often arise in response to interpersonal stresses. There is...
Bulging Eyes
Protrusion of the eyes, most commonly associated with Graves disease and thyroid eye disease....
Diarrhea
Abnormally increased frequency (usually defined as three or more) loose or watery bowel movements a day....
Excessive Sweating
Sweating more than is needed to regulate body temperature, which can accompany fever, anxiety, hypoglycemia, o...
Goiter
An enlargement of the thyroid gland....
Heat intolerance
The inability to maintain a comfortable body temperature in warm or hot weather....
Insomnia
Persistent difficulty in starting or maintaining sleep, or waking up earlier than desired, despite having adeq...
Irritability
Easily annoyed or frustrated mood, which can be caused by stress, sleep problems, hormonal changes, or mood di...
Palpitations
A sensation that the heart is pounding or racing, which is a non-specific sign but may be a manifestation of a...
Tremor
An unintentional, oscillating to-and-fro muscle movement about a joint axis....
Weight loss
Reduction of total body weight....
How Hypoglycemia may be investigated
Healthcare providers may order these tests when evaluating Hypoglycemia.
Comprehensive Metabolic Panel (CMP)
Measures 14 substances in the blood to assess kidney and liver function, electrolyte balance, and blood sugar ...
Fasting Glucose
Measures blood sugar after fasting to screen for diabetes and prediabetes....
Fasting Insulin
Measures insulin levels to help assess insulin resistance....
Glucose 6-Phosphate Dehydrogenase G6Pd Test, Quantitative
Order Glucose 6-Phosphate Dehydrogenase (G6PD) Test, Quantitative.com online through our partner and visit a l...
Glucose Blood Test
The glucose test is a blood test used to measure glucose (blood sugar) levels. Glucose is the major source of ...
Igf-1 Insulin Blood Test
Our IGF-1 blood test is commonly used to measure levels of human growth hormone (hGH) and its activity....
Frequently Asked Questions
What is the difference between Hypoglycemia and Hyperthyroidism?
Hypoglycemia and Hyperthyroidism are distinct conditions that share some reported symptoms, which is why they can be confused. Hypoglycemia: Abnormally low blood sugar levels causing shakiness, sweating, confusion, and in severe cases loss of consciousness. Hyperthyroidism: A condition in which the thyroid gland produces too much thyroid hormone, speeding up metabolism and causing weight loss, rapid heartbeat, sweating, and nervousness. This content is informational, not a diagnosis.
Can Hypoglycemia and Hyperthyroidism be mistaken for each other?
Yes - because they share symptoms such as Excessive Sweating, Irritability, Palpitations, Tremor, they may present similarly. A qualified healthcare provider distinguishes them through history, examination, and testing.
How are Hypoglycemia and Hyperthyroidism investigated?
Testing depends on the specific condition and presentation. A provider may order tests such as Comprehensive Metabolic Panel (CMP), Fasting Glucose, Fasting Insulin, Glucose 6-Phosphate Dehydrogenase G6Pd Test, Quantitative, Glucose Blood Test. Test selection is a clinical decision.