I have just had surgery to remove my thyroid on 5-16-11 and was cancer. I am now in the process of under going iodine radiation and get ready to get a body scan to see if it has spread to my lymph nodes or any where else in my body. I am very concerned with it being in my lymph nodes due to them being swollen for about a year now and even larger since the radiation process. Is this normal for them to hurt and be very swollen ( My neck is extremely swollen, huge double chin). Has anyone experience this or has anyone had the cancer spread to the lymph nodes and know anything about this subject?