Brenden, That jackass sounds like my GP and my first cardiologist.
Me: "Doctor, I had a car accident and broke both legs!"
Doctor: "Well, let's up those antihypertensives then."
If nobody on the inner ear board recommend this, try HCTZ or another diuretic. If ANYTHING will lower pressure in your semicircular canals, a diuretic will. My otosurgeon said the same thing.
If that doesn't work, give daily meclizine, 25 mg., a whirl for a couple weeks. Or do both.
Verapamil is apt to give you JUST what you don't need...a headache!