My father is currently in a nursing home and suffers from mixed dementia - Lewy Body and Vascular. Just over three weeks ago he had a fall and since then he has not been able to walk. Prior to the fall he was mobilising without any difficulty whatsoever and now he is transferred by 2 carers from armchair to wheelchair to bed. The GP didn't see Dad until the day after the fall and prescribed paracetamol for the pain he seemed to be experiencing in his knee. She saw him again the following week and her advice was to continue with the same treatment. I asked for a second opinion from the senior partner at the practice and he carried out a thorough examination, this time in my presence, and his probable diagnosis was a fractured hip. Dad was x-rayed at hospital but returned to the nursing home with news that there was nothing wrong! Does dementia progress in this way? Sudden onset with such devastating results! Could he have suffered a stroke? He complains of pain in his knee and abdomen and there does not seem to be any paralysis on one side. I'm baffled and feel like I'm being stonewalled by the medical professionals - no one seems inclined or able to give me a definitive explanation. Has anyone else experienced this kind of rapid deterioration in their relative? HELP!