I've had tinnitus apparent on my left side since 1969 like an annoying old friend that won't go away. Once in awhile I will experience a chirping sound on my right side that will go away a short time after it starts. Last night my tinnitus increased in volume and switched to my right side, the left side noise may still be there masked by this new loud gift. I recently had cataract surgery on my left eye and have been using steroid drops for inflammation, anyone had eye surgery cause this switch. The new louder hum is driving me crazy, have to get used to it all over again.