by Mark
(New York )
Question from Mark, New York: I find this site fascinating, and I am excited to get a professional response. I want to become a professional pilot for a major commercial airline, which means staying healthy.
I am nervous because my father has high blood pressure and type 1 diabetes. I am 20 years old, 6 feet 1 inch tall and weigh 191 pounds. My father is the only person in my family with diabetes.
I have recently checked my blood sugar. My readings are usually 95–107 mg/dL while fasting and about two hours after eating. My highest fasting result has been 101 mg/dL. One night I urinated three or four times within about ten minutes. On around three days each week I feel sleepy and moderately fatigued, although I usually go to bed at 1 or 2 a.m.
My family doctor says I am fine, but I still worry that my body may be showing signs of diabetes. Could you offer some reassurance?
Your reported readings do not show diabetes. Two-hour readings of 95–107 mg/dL are reassuring. Home fasting readings around 100–107 mg/dL are close to the laboratory cutoff used for impaired fasting glucose, but a home meter cannot diagnose prediabetes or diabetes.
Because your father has type 1 diabetes, it is reasonable to discuss a laboratory fasting glucose, A1C and optional type 1 diabetes autoantibody screening with your clinician. The urinary episode and tiredness are not specific for diabetes and may have other explanations.
Mark, your concern is understandable, especially when health affects a career goal. However, the numbers you reported are not in the diabetes range, and your symptoms do not establish diabetes.
| Reading | How to interpret it |
|---|---|
| Home fasting 95–99 mg/dL | Generally reassuring. |
| Home fasting 100–107 mg/dL | Slightly above the laboratory normal cutoff, but not diagnostic because home meters have normal measurement variation. |
| About 2 hours after eating: 95–107 mg/dL | Reassuring and well below the laboratory 2-hour diabetes threshold. |
Diabetes is diagnosed with laboratory testing. In nonpregnant adults, common criteria are fasting plasma glucose of 126 mg/dL or higher, A1C of 6.5% or higher, or a 2-hour glucose of 200 mg/dL or higher during a standardized 75-g glucose-tolerance test. Without unmistakable hyperglycemia, an abnormal result usually needs confirmation.
Diabetes-related urination usually means repeatedly producing unusually large amounts of urine over many hours or days, often together with marked thirst, weight loss or clearly high glucose. Urinating several times within ten minutes is not the typical pattern by itself.
Frequent urges may occur after drinking a lot of fluid or caffeine, with anxiety, cold exposure, bladder irritation or a urinary infection. Seek medical review if it recurs or is accompanied by burning, pain, fever, blood in the urine, strong urgency, excessive thirst or waking repeatedly every night.
Going to sleep at 1 or 2 a.m. can easily contribute to daytime sleepiness. Fatigue can also come from stress, insufficient sleep, anemia, thyroid problems, infection, depression, sleep apnea or many other causes. Persistent fatigue deserves evaluation, but it should not automatically be labeled diabetes.
A first-degree relative with type 1 diabetes increases your risk compared with the general population, but it does not mean you will develop it. Current ADA guidance recommends that autoantibody screening be offered to people with a family history of type 1 diabetes. This is optional screening, not evidence that you currently have diabetes.
Ask your clinician whether testing for islet autoantibodies such as GAD, IA-2, ZnT8 or insulin autoantibodies is appropriate. A positive result requires specialist interpretation; a standard glucose meter cannot detect early autoimmune diabetes.
Contact a clinician promptly for excessive thirst, persistent large-volume urination, unexplained weight loss, repeated vomiting, abdominal pain, blurred vision or clearly rising glucose. Seek urgent care for confusion, difficult or deep breathing, severe weakness, dehydration or a glucose reading near or above 200 mg/dL with classic symptoms.
No. In the United States, diabetes may require additional FAA medical review, but it does not automatically make an airline career impossible. The FAA has special-issuance pathways for medication-controlled type 2 diabetes and for selected insulin-treated applicants. Its continuous-glucose-monitoring protocol can be used for consideration of first- and second-class medical certification. An Aviation Medical Examiner can explain the current requirements.
At present, you have not described diagnostic evidence of diabetes. Focus on obtaining accurate laboratory information rather than assuming that several normal or near-normal meter readings threaten your career.
Answered by: Dr. Albana Greca Sejdini, MD, MMedSc
Medically reviewed by: Dr. Ruden Cakoni, MD, Endocrinologist
Last reviewed: July 2026
Medical disclaimer: Educational only—not personal medical advice. Diagnosis and treatment should come from a qualified clinician who knows the patient’s medical history.
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