I am a 25-year-old male who is an athlete, never smoked or used any drugs or alcohol. No medical history. For the past year, I have been experiencing pulsatile tinnitus (a whooshing blood flow sound in sync with my heartbeat, in my ears, or head). It is also accompanied by chronic migraines at the base of my skull, slightly to the right side. The whooshing noise is more severe when I suddenly bend over or stand up, much worse while laying down than standing as well, especially when laying on my stomach with my neck upwards. The whooshing noise does not stop when I compress any arteries in my neck. The whooshing is intermittent and bilateral (both ears). When I hear loud or harsh noises of certain frequencies, I also experience strong spasms in my ear that are a sort of broken speaker echo response to the noise. I have had a lot of imaging done (MRA/MRV/MRI/CT/CTA), and the only things they have found have been:
Right vertebral artery that terminates in PICA.
Developmental venous anomaly of the right parietal lobe.
Are either of these two abnormalities serious, and would either of them be causing these symptoms? What do you think could be causing this?