A - Peripheral vertigo:

• DDx: BPPV, acute vestibular neuronitis, and Ménière’s disease
• Horizontal nystagmus 
• Sudden onset

B - Central vertigo:

• Ddx: Head injuries, Illness/infxn, Multiple Sclerosis (MS), Migraines, Brain tumors, CVA, TIA ***
• Vertical nystagmus 
• Gradual onset

***Dx mnemonics: Ms. Migraines stroke the brain tumors



Resources:
http://www.aafp.org/afp/2006/0115/p244.html