In the last four months (maybe more) I have had back and neck pain. This is common for me, but usually ice and chiropractic appointments soothe it. My neck pain has turned into a soreness and stiffness. I can't bend my neck down very far and I have to try harder to keep my head up. Today, early in the morning. I woke up and suddenly cracked my neck, the pain eventually subsided. Later in the day, Pain appeared in the right side of the neck around my thyroid, with shooting pain down to my clavicle. All of these places hurt greatly when pressed. Lastly, I have mild hypothroidism. Could this pain and stiffness be related to a swollen thyroid?? Or have any connection to my thyroid??