Yeah, why else would she be scardWell, yes. Of course. This exactly.
But it's kind of obvious that Sakura doesn't possess byakugo no jutsu yet. I mean, you're basically immortal with it. And it should be usable yet since yin seal is clearly visible.
What she said was a metaphor, i can't believe people thinks she actually forgot how to breathe... Was a way to describe to emphasis how afraid she was of Madara...I agree her fear is logical and she choked... it is normal.
But i think people are making this thing a bit overhyped subject.
It's not as if she could of have moved or done anything at all if Madara attempted to kill her. You have to realize that she was completely exposed and defenceless, she was stuck to Naruto. It's kind of pretty obvious that you are going to scared out of your mind when even someone as powerful as Minato gets completely fodderized.
Because of that Ego.What Sakura experienced is very normal. People get short on breath or get the wind knocked out of them, or completely hold their breaths in situations where they are threatened by their own mortality.
Other than that, I found it odd as to why Madara didn't target the medic when she was right there, keeping Naruto alive. Yet he was wasting time on others. Odd and illogical; so unlike Madara.
:| if ur get caught off guard getting sucked into another dimension u would do the same.