My mom was diagnosed just 6 months ago with Lewy Body dementia but I would say she as had it for around 18 months starting very slowly but over the last 4 months she seems to have gone downhill rapidly she can no longer walk is incontinent can’t string a sentence together as lost Mental Capacity and now only weighs 62 lb I’m worried we are going to lose her a lot earlier than at first thought any one else seen a loved one with this type of dementia.