Hello - I'm 64 yr old who had FNA on right side of thyroid and then Thyroseq testing based on results of biopsy. It came back 70 % chance of cancer. I saw three thyroid surgeons. Two suggested removing entire thyroid and third recommended just removing right side. I was very torn After a lot of research and the helpful posts from the posts in this group I opted for half. It turns out module was cancer but with clean margins. I will continue to monitor left side due to tiny nodules there. However, the remaining half is not producing the hormones needed and I will need Synthroid. That being said I was amazed at the great recovery. It was much easier than anticipated. I was back to work in two weeks. I don't think 3-5 days is enough. Be kind to yourself and allow your body to heal. I agree with andiamo you will still be pretty tired for a while. I am two months post on and still exhausted. I wish you the best of luck. Please let us know how everything goes. Take care!