Not an issue. HP at level up scales to CON bonus, even temporal ones. @Tresset or @Troodon80, could on of you please move this to the not an issue section?
Haha, that's not how it works:) your class has a base hit points roll on level up(I don't remember what for which, exactly, but it small for mages and big for fighters) and then you get a constant con bonus for you constitution. I don't know if it depends on class, but it's like 1 for every point above 15 up to 19 or something. (But more complicated)
Comments
@Tresset or @Troodon80, could on of you please move this to the not an issue section?