the music is still good to me
I could be wrong, so correct me if I am, but I am under the impression professional testing only covers the speech range (up to about 8 KHz, IIRC). High-frequency hearing loss is not really considered a medical problem.
It's not a matter of life and death, I actually don't really care, the music is still good to me and if age does this it's ok but I was able to hear up to 17Khz let's say 5-6 months ago and now only up to 13Khz. Here in Phoenix 5-6 months ago was cooler than this very hot summer that's why I'm asking about the weather possibility. I've been in Arizona 6 years but I am not from here, I am from a small mountain town from the center-north of Italy, I have no idea what the desert can do to a person.