It sounds like your chiro knows what they’re doing? We have a research paper written by a member with advice for chiros/ physios etc which might be helpful to show your chiro:
WESTBROOK et al. (2020) - Eagle’s syndrome, elongated styloid process and new evidence for pre-manipulative precautions for potential cervical arterial dysfunction – Doctor info and research article - General / Research Papers - Living with Eagle
It looks like the IJV is being flattened by the styloid, but possibly opens up right at the skull base, but you can’t tell for sure from the imaging- I think if you were to have axial images & go through them following the IJV from the skull base downwards it might give a bit more clarity, tricky to get the right slices though!
I noticed that too but presumed it was an artefact, worth asking about though @biggfish02 …
I’m sorry that sleeping more upright hasn’t resolved those vibration symptoms… if it’s vagus nerve related then some members have found having a cold shower calms things down, have you tried that at all?
Cold showers - General - Living with Eagle