Hi Quack,
I have lesions in the same area you do. I was tested for MS as well. I did have 4 O-bands come back positive but, no MS dx. I was told it was Lupus CNS.
I have had balance problems, vertigo and constant ringing in the ears for over 9 years now. I do take Antivert/meclazine when needed. I was having bad seizures at one point and was only able to walk with a walker. I'm doing so much better now but, still struggle with the balance problems a good bit. The constant ringing in the ears can really get on my nerves sometimes too...
Take care and let us know what you find out. You will be in my thoughts and prayers.
Babs