S.H.
Is she over-tired?
Does she nap?
If not, over-tired 2 year olds, get much more... fussy and like this.
Girls, are emotional.
This is a hard age.
They don't even have fully developed 'emotions' yet nor the understanding for the precise or abstract connotations of it.
And at this age, they dont' even know how to make proper conversation or how to say things. It is taught.
These are not 'automatic' or instinctual skills.
It is learned and taught, to them.
You teach her: the names for feelings, how to say it, that she can say it, and to tell you with her words.
I taught my kids that at 2 years old.
They in time, will get more articulate about it.
At that age, my daughter got like that when she was hungry or tired.
Or hungry AND tired at the same time.