My mother is 88 and has always enjoyed good health despite having what is now moderate dementia. For the past six weeks or so, she has been v tired, sleeping until woken, then falling asleep again in the daytime, quite pale, sick on waking a few times, light headed occasionally, just not herself. She has pernicious anaemia and quarterly injections but blood/urine tests have shown nothing. Do these symptoms ring any bells with anyone? Trying to get through to GP is the usual nightmare.