That possibly doesn’t sound as if it’s vascular ES then, it would be most of the time for IJV compression. The vestibulocochlear nerve I believe can be affected by ES so it could be it’s causing you dizziness, as @Chrickychricky suggests it might be a vestibular malfunction! If you search for vestibular rehab exercises online, there are some simple ways to improve it, might be worth a try…
Looking at your scans- and this is not a medical professional opinion, I could be wrong!- quite a few of them aren’t to the skull base so it’s not possible to see the styloids very well… & I can label them for you, so will do my best to point out a few possible things to ask your doctor about:
Your hyoid bone process in some of the images looks very close to the carotid artery bulb, so possibly with head movements it could irritate the blood vessels, which can cause heart arrythmias or possibly feeling faint or dizzy.
The styloid looks visible in the bottom left image, but not in the image above it…It looks like you have an elongated styloid process one side, but the other side has a section of calcified stylo-hyoid ligament.
I can only see one image which shows your veins; to me it looks like the right side is possibly flattened a bit by the C1 process, but that could just be the view of the CT, I can’t see much of the vein on the left side, so it could be a non-dominant vein and naturally smaller.
Your hyoid doesn’t look fused but that could be your age…
It doesn’t look like you have much of the normal curve to your neck, which is called military neck- we’ve had lots of discussions about that on here, it can sometimes make ES symptoms worse & there are exercises which you can do to help , here’s a link to a long post @vdm did:
List of my favourite resources on YouTube to learn anatomy - General - Living with Eagle
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