Could be. Sounds like a good reason to get it checked out again. I just had knee surgery on Tuesday and apparently when they intubated me, they discovered my thyroid is obstructing my airway. Have an appointment in a couple of weeks with a specialist to see what is up. What a pleasant feeling to wake up from anesthesia having a doctor in your face telling you about the goiter and that you need to see Dr. Sequiera over and over and over again.