I am so sorry for the hard time you are having. My OH has not such extreme symptoms of impairment but is very moody also, and completely denies that there is anything wrong. Do keep a diary that you can show to the GP or neurologist (if you get to see one) and do try to take her for a brain scan. Most people on this site recommend 'loving lies' in order to get patients into treatment or testing. Can you say you are worried about your memory and you'd like to do the tests together? Also try to make sure you look after yourself. This is a terrible disease which ruins two lives for every patient. Keep asking the GP for help and help from related services, and give yourself an afternoon off now and then. And good luck. Keep us posted.