I had the cochlear implant surgery last December and was activated in January. I have had mapping done every 3-4 months and was told I was making progress every time. But I could never get comfortable with it enough to keep the ear processor on for any longer than 6 hours at a time. It seems I was continually bracing myself against the shrilly sounds. I was born with nerve deafness with 98% loss of hearing. My brother, also born with nerve deafness but with slightly more hearing also had the implant done (2 yrs ago). He says that whenever he hears a new sound, he gets dizzy but after a few days he's ok with it. Same thing with a friend. She had as much hearing loss as I do, and she's fine after a few days too. That has never happened to me yet. The shrilly sounds is just constant. What does that mean? Do I just need more time to adjust to the high pitches? Or am I having the wrong mapping done? My audiologist keeps reassuring me that everyone just responds to CI differently and my brain just needs time to adjust. But it's been almost a year now. Has anyone else had this same experience?