Hi - I’ve just found this forum and am wondering if anyone has come across this problem that my mother is experiencing. She has recently been diagnosed ( within last 6 months ) with vascular dementia. Approximately every 3 to 4 weeks she rapidly goes downhill and usually vomits. As soon as this happens she is extremely vacant and takes approximately 2 days to recover to somewhere near where she previously was. During her downward spiral she starts to lean to one side quite badly and has trouble walking. She has been taken to hospital and the doctors etc and bloods and urine do not show any signs of an infection and she is not dehydrated. No one can explain why this is happening or whether it is part of the dementia itself. As I have never experienced anyone with dementia or associated illness’s any help would be appreciated.