The most serious problem associated with hyperthyroidism is a life-threatening condition called thyroid storm.

Callor other emergency services immediately if you have serious signs of thyroid storm such as shock or delirium.

Call your doctor immediately if you have been diagnosed with hyperthyroidism and:

• You feel very irritable.
• You have unusually high or low blood pressure.
• You feel nauseous, are throwing up, or have diarrhea.
• Your heart is beating very fast or you have chest pain.
• You have a fever.
• You are confused or feel sleepy.
• You cannot breathe well or you feel very tired, which can be symptoms of heart failure.

You should also call your doctor if:

• You develop symptoms of Graves' ophthalmopathy, such as bulging, reddened eyes.
• You feel very tired or weak.
• You are losing weight even though you are eating normally or more than usual.
• Your throat is swollen or you are having trouble swallowing.

Watchful Waiting

Watchful waiting is a period of time during which you and your doctor observe your symptoms without using medical treatment. If you think you have symptoms of hyperthyroidism, watchful waiting is not a good idea. Call your doctor if you think you may have hyperthyroidism, so you can be treated early and reduce your chances of having more serious problems.

Who To See

Health professionals who are qualified to diagnose and treat hyperthyroidism include:

• Internists.
• Pediatricians.
• Family medicine physicians.
• Nurse practitioners.
• Physician assistants.

For further treatment, your primary doctor may refer you to one of the following specialists:

• Endocrinologist
• Surgeon
• Nuclear medicine specialist
• Ophthalmologist

To prepare for your appointment, see the topic Making the Most of Your Appointment.

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