Graves' disease is the most common form of hyperthyroidism. It occurs when your immune system mistakenly attacks your thyroid gland and causes it to overproduce the hormone called thyroxine. This abnormal immune response can also affect the tissue behind your eyes as well as your skin, usually on your lower legs and feet.
When you have too much thyroid hormone in your system, your body's metabolism rate can increase by 60 percent to 100 percent because thyroxine regulates your cells' metabolism. A higher metabolism can lead to a number of health problems, such as an irregular heartbeat or anxiety.
Graves' disease is rarely life-threatening. Although it may develop at any age and in either men or women, Graves' disease is more common in women and usually begins after age 20. The disorder is uncommon, affecting about five in every 10,000 people in the United States.
There's no way to stop your immune system from attacking the thyroid gland, but treatments can decrease the production of thyroxine.
Signs and symptoms
Signs and symptoms of Graves' disease and hyperthyroidism may include:
1. Anxiety
2. Irritability
3. Difficulty sleeping
4. Fatigue
5. A rapid or irregular heartbeat
6. A fine tremor of your hands or fingers
7. An increase in perspiration
8. Sensitivity to heat
9. Weight loss, despite normal food intake
10. Brittle hair
11. Enlargement of your thyroid gland (goiter)
12. Light menstrual periods
13. Frequent bowel movements
Graves' ophthalmopathy
It's also fairly common for your eyes to exhibit mild signs of a condition known as Graves' ophthalmopathy. In Graves' ophthalmopathy, your eyeball bulges out past its protective orbit. This occurs as tissues and muscles behind your eye swell and cause your eyeball to move forward. Because your eye is so far forward, the front surface of your eye can become dry. Cigarette smokers with Graves' disease are more likely to have eye problems.
Graves' ophthalmopathy may cause these mild signs and symptoms:
1. Excess tearing and sensation of grit or sand in either or both eyes
2. Reddened or inflamed eyes
3. Widening of the space between your eyelids
4. Swelling of the lids and tissues around the eyes
5. Light sensitivity
Less often, Graves' ophthalmopathy can produce these signs and symptoms:
1. Ulcers on the cornea
2. Double vision
3. Limited eye movements
4. Blurred or reduced vision
Graves' dermopathy
Another uncommon sign of Graves' disease is reddening and swelling of the skin, often on your shins and on the top of your feet, called Graves' dermopathy.
Causes

Normally, your immune system uses naturally occurring proteins (antibodies) and white blood cells (lymphocytes) to help protect against viruses, bacteria and foreign substances (antigens) that invade your body. In Graves' disease, your immune system mistakenly attacks your thyroid gland, but instead of destroying the gland, an antibody called thyrotropin receptor antibody (TRAb) stimulates the thyroid to make excessive amounts of thyroid hormone.
Your thyroid is part of the endocrine system, which is made up of several glands and tissues that produce hormones. These chemical messengers coordinate many of your body's activities, from digestion to metabolism to reproduction. Thyroxine — a hormone produced by the thyroid — controls your metabolic rate.
Doctors don't know what causes your immune system to attack your thyroid gland. However, they believe a combination of factors, including heredity, sex, age and stress, may determine your likelihood of developing Graves' disease.
Treatment
In homoeopathy we have a good treatment and you have to send all the detail to qualified homoeopath . I am using the following medicine for cure of this disease. Calc Iod, Spongia, Thyroidinum, Glandular medicine, Batch flower medicine. Depend upon totality of symptoms. Some time it required emergency treatment for that you have to regular touch doctor.

I have had multiple test done over the past year and no results.
I have all the signs and symptoms of "Graves Disease" but the bloodwork comes out normal,
What should I do?
Symptoms:
anxiety, fatigue, heat/cold sensitivity, hypertonic reflexes in knees, brittle hair, blurred vision, thin skin.....
please help if you can...

I'm new to the forums so excuse me if I am butting in. I have Graves' disease and it shows readily in my blood work, the thyroid function being obviously skewed. It occurs to me that because the thyroid is such a delicately balanced organ, treating it when it is not malfunctioning could be iffy. Wouldn't your physician or homeopath want to explore other possible causes of your symptoms, if the blood work is normal? Just my opinion. I am curious to know if you have made any diagnostic progress since you posted. Good luck!