I have been going to ent since I was 17 years old with several surgeries. I have otosclerosis both ears. Left is deaf now because surgery probably destroyed nerve and hearing aids won't work. The right is getting worse and worse and aid is not helping much . Told I need a cochlear because another aid won't help either. I didn't quite understand why you needed a hearing test after knee surgery and they told you your hearing is fine? First surgery I was 17 years old and have had tinnitus most of my life but I am used to it I guess. But I noticed i sing songs in my mind only and maybe why it doesn't bother me so much.