Hi Goldyflocks
If you are not sure whether or not to apply for PIP the use the self-tester;
PIP self test You need to apply for PIP before you reach state pension age, if you do not then apply before you get your state pension then you will be too late to apply for PIP, you will then have to apply for Attendance Allowance, with Attendance Allowance there is no mobility component, it is purely based on care needs.
Remember PIP is not based on a condition but on how a condition affects you.
Gary