Hi Hillary,
I am glad you got your results before Christmas. Only you can decide the path that will make you most comfortable. You have to be at peace with your decision.
Personally, I would start by asking for a second opinion of the biopsy results from a medical center with a good reputation for dealing with thyca. Pathologists can disagree and I have first hand experience with a false negative after my total thyroidectomy. Long story short, the biopsy pathologist and the surgery pathologist (2 different doctors) described seeing the same cellular changes with the biopsy saying it was cancer and the surgery saying it wasn't. This made me very uneasy so I asked for a second opinion from John Hopkins. My insurance paid for it - most of them will. John Hopkins said it was cancer also. It scares me to think of what might have happened had I not followed my instinct and asked for that second opinion. I certainly would not have had the rai and close follow-up needed to watch for recurrence.
Are you having any other problems with your thyroid? What caused you to have the biopsy in the first place?
If it were me, I think if the second opinion came back negative, I would find an endo who was willing to check me every six months with ultrasound and biopsy again any time there were changes in the nodules. Thyca is such a slow growing cancer, it's not likely that it would become an issue quickly if cancer were to develop. While not necessarily the worst surgery one could experience, neither is a total thyroidectomy a walk in the park. The medication adjustment process takes quite a bit of time and I have spent much of the last year dealing with fatigue and other issues. I would not want to go through surgery unless it were absolutely necessay.
I wish you the best as you make the right decision for you. Happy Holidays!
Ronni