My sister may have thyroid cancer. She has many symptoms...carpal tunnel, aching joints, dry and flaky skin, inflammation of her hands and feet, low speech enunciation, and now frequent bloody noses. She is stubborn in going to a doctor, so my family might hold an intervention. She definitely has something up with her thyroids, I have had other doctors advise me to have her checked on noticing her symptoms when doing a physical on another family member. If it is hypothyroid problem, will it evolve into cancer?