Thyroid nodules on left and right side. Fna showed papillary cancer. Synthroid (thyroxine) 50mcg/day. Nodules dicresed since 4/2012. Okay to wait 6 mo. For surg?

Controversial . Most of the surgeons will advise to under go surgery as soon as possible, as papillary cancer is not as lethal as other malignancies , some of the studies do show with surgery or with out life expectancy is almost same. Ask your doctor and up to you.
I wouldn't. The longer there is cancer, the longer it can work its way out of the thyroid capsule, grow, and spread via the lymph nodes. As this occurs, the prognostic factors worsen.