You are trying to divide the nodule between benign and cancer, and there are many levels in between.
Being follicular enables the possibility of something called NIFTP, which is a nodule that doesn't afford treatment according to recent guidelines.
Your doctor is right on in pursuing one information that might define the diagnostic, which is having it steady or growing. So I don't feel the need for a 2nd opinion regarding that nodule.
As the music says, "Don't worry... be happy."
OTOH, your overall endocrine situation looks for improvement; even if menopause is the cause, some hormone replacement, dietary change or both looks in order.