My wife has hoarseness in voice. And very near I found a small bulge in her neck. My mother-in-law while carrying had an operation for thyroid nodule. She does have any breathing trouble nor any difficulty in swallowing. There was some irregular periods over the last 2 months otherwise she is fine. So could my wife be having the same thyroid nodule which her mother had? Should I be concerned and consult with any particular doctor?