My tinnitus is similar to yours as it often changes pitch and tone. I'm 57 yo male. I've had it about 3 years and started the Lipo flavonoids right away. They work pretty well for me. I still have constant ringing of some sort but when I stop taking them it increases about 50 percent or more until I get enough back in my system. I typically take 4-6 per day. I also notice a big increase when I eat a real salty meal and especially when I take a lot of NSAIDS.