please help me .
The surgery you had 12 years ago was not good. I read somewhere that thyroid can grow back if surgery is not done well. What symptoms do you experience? If you are experiencing shortness of breath you need to see the doctor. It is hard to tell what the best option for you right now is and there is a possibility that you will need another surgery. Are you on any medication? Do you have any physical activists that may cause shortness of breath?
If there is a chance of cancer, you really need to check this out with doctor. It is not smart to leave this alone. How old are you right now?
I hope this helped a little.