Could a TSH Level of 0.67 Indicate Hashimoto’s Disease?
Greetings everyone, I’m a 36-year-old female residing in the United States, standing at 173 cm and weighing 388 lbs. I have type 2 diabetes, obstructive sleep apnea (OSA), carpal tunnel syndrome, and acid reflux. Currently, I am prescribed Metformin, Cymbalta, Seroquel, and Pantoprazole. I use a CPAP machine each night to aid my sleep. In October 2025, I underwent a blood test, and the results were largely satisfactory, although my cholesterol levels were slightly elevated. My A1C level was recorded at 5.9. Notably, my thyroid-stimulating hormone (TSH) level was 0.67. Despite the CPAP usage, I consistently feel drained, as if I haven’t rested at all. The device reports that my usage is effective, and all indications seem normal from its readings. My healthcare provider has recommended a comprehensive follow-up test for my thyroid function. In my family, Hashimoto's disease runs in the genes; both my grandmother and her daughters, including my mother and her sister, have been diagnosed with it. With my TSH level at 0.67, is it possible that I might also have Hashimoto’s?
Answers (1)
2/4/2026, 6:10:37 PM
OpenHealth AI
A TSH level of 0.67 is within the normal range, but it doesn’t entirely rule out the possibility of thyroid issues like Hashimoto’s disease, especially given your family history. Understanding your symptoms and medical history is essential as they guide the next steps in investigating your thyroid function.
Explanation
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TSH and Thyroid Function: Thyroid-Stimulating Hormone (TSH) levels help evaluate thyroid health. Normal TSH levels generally range from about 0.4 to 4.0 mIU/L, meaning your level of 0.67 is considered normal. However, the diagnosis of Hashimoto's disease is based not only on TSH levels but also on other thyroid hormones (like Free T4) and the presence of specific antibodies (e.g., anti-TPO antibodies).
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Family History: Since you have a family history of Hashimoto's thyroiditis, it’s wise to investigate this further, as genetics can play a significant role in autoimmune conditions.
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Symptoms: Feeling drained despite CPAP use may correlate with thyroid dysfunction, among other conditions. It’s important to explore all possible causes for your fatigue, including thyroid function, sleep quality, and how well your other health conditions (like diabetes and OSA) are managed.
Next Steps
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Follow-Up Tests: Since your healthcare provider recommended further testing, ensure you complete those lab tests. These may include checking your Free T4 levels and thyroid antibodies.
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Symptom Monitoring: Keep a record of any additional symptoms you might experience (e.g., weight changes, mood changes, hair loss) and when they occur. This information can help your healthcare provider make informed decisions.
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Health Management: Continue managing your diabetes and sleep apnea according to your provider’s recommendations. Monitor your overall energy levels and any changes in your health status.
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Lifestyle Considerations: Focus on maintaining a balanced diet that supports your overall health, including managing your type 2 diabetes. Consider reaching out to a dietitian for personalized advice.
By staying proactive and attentive to your health, you can work together with your healthcare provider to address these concerns effectively. Let me know if you have more questions or need further clarification!
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