Mum was diagnosed in Feb 2015, 9 months after we first suspected and went to doctors and after 2 lots of testing by memory clinic. Recently mum has complained of a pain in her foot. Visited her favourite doctor last week who said it was most likely a trapped nerve and would get better in time. However a friends mum had to have her toes amputated a few years ago due yo sceptaceamia, and mother is convinved she needs to have her foot amputated. We keep telling her this is not going to happen, but she thinks us and the doctors are wrong. Also can't take her blood pressure - show writhes and yells saying it is agony! Is this common behaviour?