Based on my five-year history of a thyroid condition, my current use of Thyronorm 100mcg, and my recent blood tests showing normal thyroid hormones but high thyroid antibodies, do my results indicate that I might have Hashimoto's or Graves' disease, and can this be treated with medication?
Hello. It is very reassuring that your thyroid hormone levels are currently normal, which shows your Thyronorm (levothyroxine) is working well. Having high thyroid antibodies alongside an underactive thyroid history strongly suggests Hashimoto's thyroiditis, a very common and manageable autoimmune condition, rather than Graves' disease. Hashimoto's causes the immune system to target the thyroid, but the treatment is exactly what you are already doing: taking your daily thyroid hormone replacement medication to keep your body's levels stable. You are on the right track, and there is no cause for alarm. Please share these results with your doctor for routine monitoring.