Hi Robert, Welcome to HealthcareMagic Forum.
Your History Suggest it to be a Thyroid
Swelling. You need to get yourself examined by a General Surgeon
, so that he can examine you and Suggest, few Blood and Urine tests and Ultrasound
of Neck if necessary to confirm it.
Kindly do not delay, visit a Surgeon at the earliest.
Hope i have answered your Query, I Will be available for your Follow up Queries.
Wish you Good Health.