I’m glad your pain management doctor listened to you even if the ENT didn’t!
The trigeminal nerve goes up to the top of the scalp & can cause pain there, plus pain at the back of your head can be the occipital nerve. Sometimes if there’s IJV compression, nerves at the back of your head/ neck area can swell (collateral nerves they’re called) to help take the blood away & this can cause pressure on the ON & cause pain. Also just being in pain & being tense from that & stress can trap nerves amongst the tight muscles. Here’s some images of the trigeminal & occipital nerves:
Regarding the cost, there have been some discussions about appealing / fighting your case with the insurance company if you need to see someone out of network:
[Update …final appeal - General - Living with Eagle]
Dr Osborne- Blue Cross Blue Shield Out of Network Waiver-2025 - Welcome / New User Help - Living with Eagle(Update ....final appeal)
I hope these help… hope your CT goes well, & I’m sorry that your dealing with all this hassle with your house insurance too! Hugs

