They call the thyroid the master gland, and do so for a good reason. It controls so many things in your body it's even hard to list them all here. And even things that it doesn't control it also has some effect over, including things like libido believe it or not. Some things are or can be rather serious, others not so much. A serious thing for example is that thyroid issues can cause infertility, non serious, it can cause hair loss/growth.
The thyroid gland is very complicated in a matter of speaking, and I find it highly interesting. Thyroid disease effects women more often than men. There are in fact two thyroid glands, not one as previously mentioned. There is the thyroid gland itself, and the parathyroid glands too. Para meaning "around".
As a woman who suffers from a form of thyroiditis (itis meaning inflamation of) called Hashimotos (sp?) Thyroid Disease and as a nurse, I am pretty well versed in thyroid issues. However as I mentioned before, a thyroid is pretty complicated, especially for as small as it is and I still learn things about it and my disease all the time.
To put things on a very very simple level, there are basically 3 most common types of thyroid issues. High, low, and changing. If your TSH is high, say over 4 or 5 for most lab values, then you have hypothroidism. And I believe if it is 0.2 or less then you have hyperthyroidism. Confusing I know. The values run opposite like a gauge of a needle. The lower the gauge the bigger the needle. The higher the TSH level the more hypothyroidish you are. Hypo meaning low, and hyper meaning high basically. But if you are like me you have the third type which is changing. My thyroid waxes and waines, meaning that it might be working just fine for 6 months, then suddenly it will stop working and my TSH level goes through the roof. And it continues to work then not work. So I take my meds and then my thyroid decides to start working again and then suddenly my TSH bottoms out. I have learned to be able to read my body and adjust my snythoroid medication accordingly. I do so mostly on my sleep patterns. If I am tired all the time then I need more synthroid, if I am wired and can't sleep then it's time to back off my medication. And no, I do not suggest anyone else do this. Do as I say, not as I do.
I had been having weight issues my entire life once I reached puberty. I was very hairy as well and just assumed it was because I am part German. I could sleep anyplace at anytime all the time, and my hair was very course and dry. I was also hot all the time too. All these symptoms along with a tire around my neck should have clued someone into the fact that I probably had a thyroid issue. My family history also strongly pointed to thyroid issues as every single woman on both sides of my family have had goiters or thyroid issues. Also, I have never had a period that was even close to being regular, another clear sign. I went basically undiagnosed for 30 years because everytime I was tested, my TSH, T3 and T4 was basically normal. Finally after testing and testing for multiple months in a row I had one that came back high and presto, the dx was determined. I was put on synthroid and I lost 30 pounds in less than 2 months. Amazing.
Also mentioned was how dangerous synthroid medication can be. This is also true. And remember, do as I say not as I do. I decided to double up on my synthroid medication because I wanted to feel that much better. Well by doing so it caused some issues that will never go away. It left me with permanant nerve damage in both my hands, especially my left. I have a slight tremor. At first it was a huge tremor, but it got better with time and is now only slight. But point is, never take more synthroid medication that the doctor gives you to take. Not a smart idea.
There are still a lot of studies being done with the thyroid and issues it can cause. They have recently found a link between kidney stones and thyroid disease. Interesting because I am prone to those too. Get your thyroid checked folks. Also, on another point. About 4 years ago I had a thyroid scan done and they found 3 nodes, 2 on the left and 1 on the right. The largest is 9mm. They are not palpable and they will not do a biopsy until they reach 1 cm. Also, I have read the chances of nodes being cancerous if they are there when you are young is slim. Also interesting. I have an enlarged neck, but I do not have a goiter, just an enlarged thyroid. That I am thankful for.
Mashie