What causes high TSH levels despite treatment?

Question

Hello doctor,

I have been struggling with underactive thyroid (hypothyroidism) that has not improved, even after six months on the highest dose of Levothyroxine (synthetic thyroid hormone T4). My thyroid-stimulating hormone (TSH) level remains elevated at 22 milli-international units per liter (mIU/L), and my symptoms are worsening. I have gained 17 pounds in just one month despite barely eating, and I am so exhausted that I can not climb a flight of stairs without resting. My hair is falling out in clumps, my skin is dehydrated and cracked, and the mental fog is so severe I forgot my address recently. I have read that some patients who do not respond to Levothyroxine alone may benefit from combination thyroid therapy, which includes Liothyronine (synthetic T3 hormone) in addition to T4, but my doctor has refused to consider it. I am feeling desperate. What treatment options are left for someone like me? Should I seek a second opinion, or are there additional tests that could explain why my thyroid levels and symptoms have not improved?

Please help.

Answer 1

Hello

Welcome to icliniq.com

I understand your concern.

You are experiencing severe symptoms of hypothyroidism despite being on a high dose of Levothyroxine (synthetic T4), with persistently elevated TSH levels indicating that your body is not receiving adequate thyroid hormone. Common symptoms like hair loss, rapid weight gain, extreme fatigue, brain fog, and dry skin point to an ongoing hormonal imbalance. Several factors could be contributing to this, including poor absorption of the medication due to gastrointestinal issues, drug interactions, or incorrect timing of your dose. Autoimmune thyroiditis, such as Hashimoto’s disease, may also require more frequent monitoring.

Additionally, some individuals do not effectively convert T4 to its active form, T3, which could explain continued symptoms. In such cases, combination therapy that includes Liothyronine (T3) alongside Levothyroxine (T4) may be beneficial, especially for cognitive and energy-related concerns. If your current provider is hesitant, seeking a second opinion from an endocrinologist is advisable. Testing for malabsorption issues, trying a different formulation of Levothyroxine (like a liquid or soft-gel version), and checking both free T3 and reverse T3 levels can help guide treatment. With the right evaluation and care, there are still effective options to manage your condition and improve your quality of life.

I hope you are satisfied with my answer. For further queries, you can consult me at iCliniq.

Thank you.