I had a bout of that hit me about a year or two ago. It hit at work when I had a photography assignment and I barely got through it... it hit near the end of the session. I was holding on to the wall to walk and getting nausea feelings, but not enough to throw up.
I went to my doc and he knew what it was immediately and explained it to me.
To do those Epley method rehabs, you would almost need a doctor's table (because you need to let your head extend below the edge of the table) and someone to help you.
I sorta tried to do them on the floor in our living room, but mostly, I just stayed in bed a day or two... and sat up and stood up reallllllllly slowwwwwwly when I had to get up.
It would make my head swim when I lay down, too.
Doc told me something to pick up at the pharmacy... I think it was something right off the shelf... it helped. If I can think what it was, I'll post it here.
Mine has never been back.
Epley method in a Google search:
http://www.google.com/search?hl=en&safe=off&ei=GaSbSdjTCNSyjAf_5rDABQ&sa=X&oi=spell&resnum=1&ct=result&cd=1&q=epley+method&spell=1