Feeling wired, anxious, or losing weight unexpectedly? High thyroid levels, also known as hyperthyroidism, could be the culprit. Let's break down what those thyroid hormone numbers – TSH, T4, and T3 – actually mean.
Think of the thyroid gland as your body's thermostat. The pituitary gland releases Thyroid Stimulating Hormone (TSH), which tells the thyroid to produce T4 (thyroxine) and T3 (triiodothyronine). T4 is mostly inactive; it's converted into the active T3 form that directly affects your metabolism.
High thyroid levels generally mean your thyroid is overactive. Typically, this translates to *low* TSH (because the pituitary is signaling the thyroid to slow down) and *high* T4 and/or T3. Elevated levels of these hormones can speed up bodily functions, leading to symptoms like rapid heartbeat, tremors, and difficulty sleeping.
If you're concerned about high thyroid levels, it's crucial to consult your doctor. They can run the necessary blood tests, accurately interpret your results, and recommend the best course of treatment for you. Don't self-diagnose – getting the right information is key!