Your thyroid may be small, but it has a huge impact on your overall health. The thyroid is a butterfly-shaped gland in your neck. It produces thyroid hormones that control many of the processes in your body, including how fast your heart beats and how your metabolism functions and burns calories.
When something goes wrong with your thyroid, it can start working too hard, or not hard enough.
Hypothyroidism means your thyroid is not producing enough thyroid hormone. Hyperthyroidism means your thyroid has gone into hyper-drive, and is producing more thyroid hormone than your body needs.
Either too much or too little thyroid hormone can have serious effects on your health.
1) Pain in the neck
Do you have discomfort on the front of your throat, unexplained changes in your voice, or a lump in your throat? You could have an enlarged thyroid gland, also called a goiter, or a thyroid nodule. It's best to see a doctor to determine whether further examination is needed.
2) Heart Issues
Too much thyroid hormone can cause heart palpitations, which may feel like your heart is skipping one or more beats. It can also increase your heart rate, as well as your blood pressure.
Too little thyroid hormone can make your heart beat slower than it should. Low thyroid hormone levels can also allow “bad” cholesterol levels to rise, which can lead to serious heart disease or heart failure.
3) Brain fuzz
Too much thyroid hormone can make it hard to concentrate. Too little thyroid hormone can make you more forgetful.
4) Changes in mood
Too much thyroid hormone can make you feel restless, irritable or nervous.
Too little thyroid hormone can decrease the serotonin levels in your brain. Serotonin is known as the “happy” hormone. Reduced serotonin, then, can make you feel sad or depressed.
5) Bowel problems
Too little thyroid hormone can cause constipation.
Too much thyroid hormone can lead to more frequent bowel movements or diarrhea.
6) Changes in appetite