I have a form of pulsating tinnitus, which only occurs in early AM (2-4) I m on a series of BP meds, and have been taking BP medication for over 10 years. The noise is never present during the day, and usually disappears if I sleep somewhat upright. I ve had a carotid Doppler test which was okay, and am scheduled for an auditory test next month. The only tinnitus problem I ve ever had was a Eustacian tube issue over 20 years ago. Any thoughts?