Diagnosed with Goiter....?

I was diagnosed with Goiter and a 3mm cyst on my thyroid after an ultrasound on my thyroid. I just today went and had a TSH blood test to determine is I have Hypothyroid. The question I have is my Doctor said I wouldn't need to take medication for the goiter if my blood test came back fine but I have read differently on the net. Does anyone out there that has goiter take thyroid meds for it? or do I just leave it enlarged and not do anything about it? I am confused. I do have a family history of hypothyroid. Both my sisters have it. I will know more once the blood tests come back but do I still need treatment with just a goiter?

and I have had really bad fatigue in the past month of so. It got really bad about 3 weeks ago when my body felt sick but I had no symptoms of a cold or flu and I was extremely tired and felt achy.

Do you understand what conditions cause goiter? Take a look at this.

The thyroid gland can be enlarged if it makes too much hormone, too little or even sometimes when it's functioning normally. The thyroid is controlled by the pituitary gland, the "master" gland, which secretes thyroid stimulating hormone (TSH) in response to the amount of thyroxin in the blood. TSH increases the amount of thyroxin secreted by the thyroid and also causes the thyroid to grow.

In hyperthyroid goiter if the amount of TSH is excessive, the thyroid enlarges and secretes too much thyroxin. The end result is hyperthyroidism with goiter.

Then there is euthyroid goiter in a normal thyroid. The thyroid is the only organ in the body that ues iodine. If dietary iodine is slightly inadequate, too little thyroxin will be secreted, the pituitary will sense the low levels in blood and produce more TSH. The thyroid gland will enlarge enough to make sufficient thyroxin.

In hypothyroid goiter, if dietary iodine is severely reduced or restricted, even an enlarged thyroid will not be able to make enough thyroxin. The gland will keep growing but it will never be able to make enough thyroxin.

Something that may apply to you is that excess TSH or similar hormones, cysts and tumors will enlarge the thyroid. This is where I'd need to know if your goiter is local or general. TSH enlarges the entire gland but cysts and tumors enlarge only a part of it. Therefore if your thyroid function tests come back within normal limits, it may be that the cyst is responsible for the goiter and it may not be replacement hormone therapy that you need after all. Wait for the results and discuss possible effects of the cyst when you have your follow up visit to go over your labs.

sounds like hypothyroidism. The TSH should tell the story, but you also need an I 131 radioactive uptake and scan. Based on this, you may need a biopsy to rule out cancer.