Have it... Do not like it. Mine pretty much sounds like the Emergency Broadcast System... It coincidentally occurred after getting bit by a tick and having other symptoms, so I have had a complete workup on everything... I also recently had hernia surgery (although the symptoms started before the surgery, they have increased since). The tinnitus has worsened to a degree that it is quite aggravating... And after going to an audiologist, there is nothing that can be done (which is what I had already basically read doing my own research)... Her best advice is to wear more hearing protection when I shoot (she was smart enough NOT to tell me to give up shooting). I was a bit surprised at how little the audiologist knew about commercial shooting protection, and had not even heard of the electronic protection (such as Walker's). Basically in my case it looks like the cause is repetitive loud noises (i.e. shooting), and damage done at younger years can strike in latter years, long after exposure to the sounds actually took place. WEAR YOUR HEARING PROTECTION.