My daughter had a bad case of vertigo, and the doctor used the Epley maneuver. Worked like a charm... but it included the full 48 hour follow-through of keeping her head in a vertical position. The doctor told her she could buy a collar, or she could roll-up a thick towel longways and put it around her neck and tying the "ends" together where they crossed under her chin with twine.

This is the exact procedure my daughter had when she had treatment for a persistant case of vertigo:
http://www.youtube.com/watch?v=YK2Zj_TrBhE

These are also helpful websites:

BENIGN PAROXYSMAL POSITIONAL VERTIGO
http://www.dizziness-and-balance.com/disorders/bppv/bppv.html

WebMD has a good article:
http://www.webmd.com/brain/tc/benign-paroxysmal-positional-vertigo-bppv-topic-overview

I hope you'll soon get over this vertigo.
((hugs))