Symptoms of Hyperthyroidism & Hypothyroidism

If you've experienced unexplained weight gain, your thyroid could be to blame.

If you’ve experienced unexplained weight gain, your thyroid could be to blame.

Known as the “great regulator of mind and body,” the thyroid is a butterfly-shaped gland that produces hormones credited with controlling metabolism, the system that helps the body use energy. But when your thyroid goes into overdrive, producing too little or too much hormone, it can wreak havoc on your body and health.

When your thyroid gland produces too much hormone, it’s called hyperthyroidism, while a low level of the same hormone is referred to as hypothyroidism. Symptoms of each include…


  • Unexplained weight loss
  • Swelling in the neck
  • Sped-up heart rate
  • Feelings of anxiety, irritability, restlessness or trouble sleeping
  • Excessive sweating or an aversion to heat
  • Muscle weakness or trembling hands
  • Vision problems
  • Diarrhea
  • Irregular menstrual periods


  • Unexplained weight gain
  • Fatigue or feelings of depression
  • Feeling cold
  • Dry skin and brittle nails
  • Numbness or tingling in the hands
  • Constipation
  • Abnormal menstrual periods

Additionally, hair loss or swelling in the neck can be caused by either hyperthyroidism or hypothyroidism. Both issues tend to affect women more than men, and hypothyroidism is particularly common among women over 60. Other risk factors include a family history or personal history of either issue, or any autoimmune disease.

If you’re experiencing symptoms of either hyperthyroidism or hypothyroidism, treatment is critical. Contact St. Augustine Ear, Nose and Throat at 904-461-6060 to schedule an appointment with our Thyroid Specialist, Dr. Zeeshan Aziz.