I had dizzy spells pretty bad too.  I have vertigo from ear crystals being in the wrong part of the ear. Here is the info about BPPV, which it might be...

http://en.wikipedia.org/wiki/Benign_paroxysmal_positional_vertigo

I tried the Eply maneuver with no luck, then I tried The Semont maneuver and that did the trick for me. 

http://www.youtube.com/watch?v=dfb3a8HxKmo

I will be in prayer for healing and salvation for Anna.  God bless.