Kitten,
Some of your symptoms perfectly define the source of all of your problems.
* Two nodules on my thyroid
* Excessive Sweating
* Sensitivity to hot and cold
* Ovarian cysts
* Anxiety
* Depression
* Forgetfulness
We need to look no further. You have all the classic symptoms of SEVERE Iodine deficiency. I'm surprised that you don't also have fibrocystic breast disease.