Nank: If you search "pulsatile tinnitus" or under my profile name, you will see I have posted on this topic myself. It's the worst! I got treatment sooner rather than later to try and stop the heartbeat sound in my ear.
And the doctors tell me there's no correlation between ANs and pulsatile tinnitus. I don't believe them!
Hang in there. Not sure if it helps to know you're not alone in this, but you're not.