Hello Alan,

Thanks for the further information. Try this link to help explain the various testing eg ENG : VESTIBULAR TESTING

It has been my belief that the Epley treatment (not a test) may help you. Your symptoms are mild on the scale of things regarding BPPV therefore may not be picked up by testing looking at the eye movement. Try the Epley treatment, at least it rules out one other thing. The antihistamines or other sinus type treatments may clear the foggy head.

Overall stress and constant symptoms will increase the neck tension, as I explained initially. Keep us informed of your progress.