I have been wearing my CI now for almost a month, have had 2 tuning sessions and another one due in 2 weeks. I am having a problem where after 4 or 5 hours in a loud environment my entire head throbs, even my non-implanted side. I have to turn it off for a 30 minute break or so. Why does it affect my non-implanted side? Is this normal? I told my audiologist and she said I may need to speak to my surgeon. Any ideas?