I too have tinnitus. It is a constant ringing or sounds like crickets.It is nerve damage from years of air tools, chainsaws loud motorcycles and heavy equipment. It will keep me awake at night. I don't use hearing aids yet but am affraid I will fail my hearing test for my CDL license before much longer and have to. I should have listened to the old timers when I was younger. Now I'm one and I can't hear them.