Hi Islandbound,

Welcome to NeuroTalk!

Did a specialist order the MRI?
Have you seen an Ear, Nose and Throat (ENT) specialist?

There are several known potential causes of this sound and the co-occurring headaches. This sound may or may not be a form of tinnitus. This sound and headache may or may not indicate a vascular/circulatory issue, with various types of underlying causes.

A specialist will most likely know which conditions to consider, which to rule-out, and which tests/scans are needed to complete a full work-up. Sometimes, additional scans ( other than an MRI) are indicated.

Do you take your blood pressure and/or pulse readings during these episodes?
Do you keep your body adequately hydrated via liquid intake?

Might you consider keeping notes/diary which outlines when you have these symptoms, how often, while noting any other correlations?

I hope you find answers and relief soon.

Again, welcome to NeuroTalk. Hope to see you around the forums.

DejaVu