Cookie --- Doctors often tend to treat all tinnitus patients the same, when pulsating tinnitus is vascular in nature. Pulsating may have a different cause, and some cases are highly treatable. Finding a doctor who understands this can be challenging.
Lvc595 -- I'm not in California, but if you don't receive any responses here, you might try looking for a good neurotologist in your area. They have more specialized knowledge, and may spend more time working with you to find a solution.
I've tried that here, and had a lot of tests, but so far, no answers!