@sf2021 I'm pretty sure I would have the same concerns as you do if I had the same symptoms. You mentioned that you've had extensive tests to rule out a few conditions like MS and multiple myeloma. I read in your other post that you have lately felt pressure on the right cheekbone near the ear. Have you discussed the new symptoms with your doctor? Just wondering if it may be providing more information to help with a diagnosis.

What to know about pressure in the head: https://www.medicalnewstoday.com/articles/326531#causes-and-other-symptoms