The requirement of "health notification" is "telling the truth", that is, telling what you know and not telling what you don't know. Now that we know, there is no need to hide it. If you hide your illness, even if you buy insurance, after the accident, the insurance company may refuse insurance according to your previous cases, which is not good for you.
You had thyroid nodules when you were insured, but you didn't have a physical examination. You don't know about it. You will claim for thyroid disease in the future. Because you have no record of thyroid nodules before insurance, the insurance company has to pay honestly. Of course, if you already feel uncomfortable, you should have a check-up and treatment, and don't delay for the wool of the insurance company.
I hope my answer can solve your question. For more questions, please consult Da Lingbao ~