Finish out the treatments before jumping the gun on MS. You have lyme disease. A neurologist won't even consider looking for MS until you have been successfully treated for lyme. MS is a diagnosis of exclusion. You won't get an MS diagnosis until all other causes have been ruled out. If you have lyme, then they will just assume that is what is causing your symptoms. Good luck! I hope you feel better real soon.
Your symptoms are all seen in lyme. Give that treatment a chance.