What Are The Symptoms And Treatment For CNS Disorder?

Almost 2 years ago i fractured my skull in 3 places, i bled from my ear, and one of the 3 fractures was where my jawbone connects to the skull, since then i have had frequent dizziness and migranes, i cannot smell unless something smells extrememly strongly and even those things dont smell right, i cannot taste the same either, the dr found that a i had a cns disorder and recommended vestibular therapy, but i was pregnant and just delivered this halloween! my question is, are these characteristics of a vestibular nerve damamge or could it be something worse? and why couldnt he do the therapy while i was pregnant?