Hi.Im a carer for my mum who has mixed dementia (Alzheimer's and vascular)and one thing which I can get no help with understanding is the blackouts she takes.Last year she has had 12 episodes where the blood drains from her face,blood pressure/oxygen levels/pulse rate and temperature all drops.After a few minutes she starts to come out of it,but will be in bed for a day or so to recover.She was admitted to hospital in March with COVID and September with pneumonia where she had 3 episodes and two episodes respectively, doctors/consultant present when these happened.The medical professionals didn't have a clue as to why,mum was sent home and I was told take care.Has anyone else experienced anything similar?