Had it for years it seems. Too many guns shot while no ear protection when young, too much working around equipment that has a consistent loud sounds and loud 80’s music when I was a teenager. I’m like others I get use to the constant “cicadas singing” in my ears. I try to keep something going like a fan, TV or radio. As long as I have something in the background I don’t notice it but if it’s quiet it is aggravating to say the least. Some medicine makes it worse like ibuprofen will with me. Mowing grass will really make them ring awhile louder than normal for awhile after.