She's never been one for scratching a lot.
Had her to the vets who have examined her and found no symptoms, checked her joints, had me walk her around the car park-nothing making her scratch. No fleas-and she's 8 and has never had fleas, I've been advised that fleas don't tend to favour the type of fur that she has.
I am tempted to treat her for them anyway just in case but this probably isn't the best idea. I've also thought about it possibly being hayfever or an allergy?