If you have 20% cancer in your thyroid nodule but it remove already it's possible all of your body have a cancer now feb nxt year ?

What are you asking?: Where did you hear about "20% cancer"? I'm a pathologist and that means nothing to me. The nodule's gone. Most of these never come back. If they do, they're usually pokey and manageable. You're not going to become a cancer cripple any time soon. Truth is, you need to have a talk with your physicians -- they may assume you know things about which you still have questions. Ask away.