I have "stereo pulsatile tinnitus" (SPT?) meaning that the repetitious distant banging sound (bans rhythmically one second apart) is not in one ear or on one side. I discovered that all I have to do is do some deep breathing and the SPT disappears for awhile. Whatever it is, neither MRI nor brain scan discovered anything. Is this something new? Do I have PT of some kind, or is this different, not associated with PT?