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Most days not bad. Some more irritating. Rarely loud and persistent.

Does your tinnitus change in pitch and volume or is it kind of constant?

It changes. At times it is constant. At times it changes in pitch and volume. I mostly notice when that volume is loud.

Interesting, i have also tinnitus and it changes. Sometimes i hear a loud high pitched sound over my normal tinnitus and then it's back gone as randomly as it came.

Sometimes marked by a single loud high pitched short burst.