Have to agree with Paul ... although I pretty much know where my dizziness is coming from (my left ear which I injured) my neurologist told me ABSOLUTELY NOT to visit a chiropractor!
Also, VRT is only helpful if your 'lesion' is stable. But you see if your 'lesion' is stable the brain would quickly adapt anyway (thus I don't believe VRT is of much help).
It might have been the VRT that could have set off your migraine ... I've only needed VRT to get an attack before.
I gave up on VRT, have never seen a chiropractor and I've been doing ok. I did have a terribly stiff neck until I started taking Amitriptyline which reduced the eye dependence and solved that problem.
Hope your relapse resolves soon (it will!)
Dizzydad, have you had a second opinion, do you have any ear symptoms like tinnitus, feeling of pressure?