My 90 year old mother lives in assisted living and is having chronic vertigo/dizziness with vomiting. She went to the hospital on Monday and was given every test known to man, all negative. Meds were reviewed and her Gabapentin dose was reduced. She is still dizzy and suddenly incontinent at night; wets the bed in spite of wearing briefs. She was diagnosed with progressive dementia at the hospital.......I don't know if we're dealing with vascular dementia, Alzheimers, or mixed dementia. The biggest issue is the dizziness, which the hospital said was NOT vertigo, but the Physical Therapist at the ALF and the neurologist says IS vertigo. Meclizine is not effective. Anybody going through something similar who can offer advice?