It does sound like you could have IJV compression, if you read up about vascular symptoms you’ll see that pressure, hearing your pulse, being unsteady (like being on a boat, or feeling a bit drunk) are common. Here’s a link:
ES Information: Common Symptoms And Possible Explanations For Them - Welcome / Newbies Guide to Eagle Syndrome - Living with Eagle
Your migraines sound awful, have you ever looked into mast cell activation syndrome? Quite a few members coincidentally have both…
If you do have vascular ES, & want a skilled surgeon then Dr Nakaji in AZ would be the nearest to you… Although one of our new members has recently had surgery with Dr. Babu Welch at UT Southwestern, he has performed surgery for VES & a C1 shave I think. (also Dr Lee Pride, interventional radiologist can diagnose ES) Babu Welch, M.D.: Neurological Surgery | Cerebrovascular Disease | UT Southwestern Medical Center
@TexasEagleSuffer had surgery with him:
My Full Story - Welcome / New User Help - Living with Eagle