What else can I do?

38f. For the past 3 months I have had a weird sensation of my brain moving like a tilt a whirl when im laying down. I have been to a neurologist, I have seen an ENT, and these are the tests I have had done Vmg Rotary chair limited byt normal otherwise CVemp normal Ovemp normal Ct-head. . I had xrays done on my neck and it showed loss of curvature. I have been working with an upper cervical chiropractor and I do vestibular rehab with physical therapy. What else can I do or should I do that may possibly get rid of this sensation. It is absolutely the worst.