That may have more with the fact that you are using a notebook than the style of the keys itself, as some people don't like the notebook angles because the hand is not on an inclined position, which is recommended.
Also depends on what angle you are typing, the position of your arm, if the height of your desk makes your elbows be aligned with your desk while typing, etc.
I suggest that first you seek advice about your position while working (there's a lot of information about ergonomics when working on a notebook), then try to get also an apple external keyboard to use it attached to the MacBook (the angle of the external keyboard is better / correct, as it's slightly inclined).