Ability Score Damage and Retroactive Effects?

[Feathercircle]

If a character takes permanent ability score damage to Intelligence, do they lose skill points retroactively?

Your answers on this will help me decide if the character I have in mind to create would be difficult or flat-out unplayable.

Thanks in advance to all who give me feedback on this.

 

[Witness]

A character who loses Int does not lose skill points retroactively. Their new Int score does of course effect the skill points they get when they next level up. Also, a character who gains Int does not gain skill points retroactively.