I have a tracheal stenosis. It lays very close to my vocal chords and i lose my voice when it flares. The fact that urs was better after surgery and returned, sounds much like mine. My wegeners is usually at one spot at a time. It started as sinus stuff n went to joint pain. My last bout was the stenosis. I too, loved to sing. Was always a dream altho i never had training beyond grade school. If u have any questions dont hesitate!