How definite are they that you have cancer? I had been told that thyroid cancer cannot be diagnosed until surgery. FNA have false positives. When I went to find out if I could be a candidate for Radio Frequency Ablation (RFA) they did an FNA and sent it for Affirma testing, which has the highest probability for predicting cancer. Mine came back with a 50% change for Hurthle Cell Carcinoma (HCC) so I was not a candidate for RFA. You might want to look into a second opinion with a surgeon who does RFA to see if it is an option. Since I had a very large nodule that was crushing the other structures in the area and causing pain I had to have surgery….I was also very worried about the laryngeal nerve and speaking and only wanted a lobectomy. The surgeon had said that might have to change to a total thyroidectomy if it looks more invasive when they do the surgery. Unfortunately, HCC was confirmed. I had hoped I would not have to take Synthroid but it appears that I need it. Finding the correct dose and correct medicine has been tricky!! The side effects have been very hard, however I think things are improving. I started with many trials of medicine and the doses were too high; I am now on a very low dose 25 mcg 5x a week and some of the more challenging side effects have improved. IF YOU NEED SURGERY, a total thyroidectomy will guarantee that you will need to take medication. If you have a partial lobectomy, you might need to take medicine, however you might not need medication….the other half might work well enough for your needs. I don’t think they can predict which one you will be.
Some advice if you have surgery: take pictures of you neck every day so you can see changes, use the silicon scar cover because it really does help the scar to heal and blend into your neckline, keep a chart about symptoms; and if you go on medication ask to start low and work up and keep a log about your side effects. Some of the side effects are subtle and can be unrelated, however the medicine can influence it (I had extreme leg cramps on Tirosint and thought I was having a stroke! The leg cramps stopped when the medicine was stopped….whew!) A lot of people take Synthroid and never have an issue. Unfortunately, I have always had issues with side effects from medications so this continues and has been challenging. Definitely read the side effects of the medications!! My thyroid test numbers have always remained in the normal range, however I was having side effects of hypothyroidism so I had to take medicine. It’s important to monitor blood tests numbers AND how you feel.
A lot of people end up taking thyroid medicine and it is easily adjusted and feel great, so not to worry if you need it, but you should be aware in case you find yourself in the group having difficulty getting on the right dose.
Good luck!