I am 61 and I have my T for 4 years. I remember that day very clear - I was on rehabilitation after cardio hospital and I felt hissing in my head and some kind of face numbing. It was early in the morning just after waking up and from that time my T never stopped... I have T like some kind of "hissing", the main frequency is between 8 and 9 kHz. It's similar to some background sound when you are in complete silence but much more louder. I can also compare it to the sound producing by cicadas but more regular and smooth. By the way my cardio diagnisis was not confirmed - I had not heart attack and there were pain and bad state related to strong neuralgia of thoracic spine. I still have the neuralgia, strong vertebral and spine osteochondrosis at the moment. From what I happened to know about tinnitus mine T can be connected to the following: - hearing nerve damage by strong cardio medicines (may be aspirin?) - strong neuralgia and osteochondrosis against a background of great stress in cardio hospital. At least there was concurrency. Of course there could be other reasons - I'm not a doctor and a lot of doctors I addressed to could not explain the real reasons of my T or could not give any useful recommendations. I am from Russia and in general the most of ENTs here do not know at all about T and it's treatment. Thanks.