A lot of people get confused between a terminal illness and disability. You can have a terminal illness and not be disabled and of course vies versa.
To qualify for Attendance Allowance you need to be a Pensioner. i.e. over 65. Disability Living Allowance is for those of working age.
Put quite simply to qualify you MUST NEED someone to look after you virtually full time. Again being simplistic; if you can dig the garden, walk the dog, cook your own meals, go to the toilet without assistance, take your medicine without forgetting, get dressed by yourself you do not qualify for either allowance.
I worked as a voluntary Case Worker for 10 years with Soldiers, Sailors and Air Force Families Association (SSAFA) and I would always recommend you go to CAB or Macmillan to fill in the forms. The words you put down are very, very important
Kindest regards ? Vasbyte
David