Starting from 2 years old, with both my kids, I began teaching them about 'feelings' and the names for it.
I taught them how to communicate it.
I taught them its okay to have feelings and even grumpy feelings... but 'we' learn how to say it with words. NOT hurting other people.
In time, you gotta give it time... a child learns.
By the time my son, for example, was 3 years old, he could tell me about his feelings and how he felt. He would KNOW for example, if he was 'irritated' or 'grumpy' or 'frustrated' and he would tell me. He would even be able to tell me if he was grumpy... and that "I need to be by myself... don't bother me now." And he'd go in another spot in the room to mellow out. Then come back and be fine. I respected his feelings.
You have to teach a child these things.
They do NOT have, automatic knowledge of it, unless you teach them.
You teach them how to express themselves, and how to have conversations. Not talking being only about what to do or not to do. Conversations... and letting them speak their ideas and emotions and what not.
Some adults, don't even know how to do that.
So, in that respect, a child has to be taught, how... to say things and the words for it.
They cannot guess at it.
You teach your child.. manners.
You teach your child... boundaries and consequences.
Be consistent.
And teach your child sign language.
Since she cannot talk yet.
Or your get your child a Speech Therapist.
The "Early Childhood Intervention" organizations, have FREE assessments for kids 1-3 years old.
My son was delayed in speech. He had a speech therapist via this type or organization. It is free. I called them myself. Did not have to have a Pediatrician referral.
My son had this from 19 months old until just shy of 3 years old.
And made great progress.
Kids get frustrated when they cannot talk what they are thinking, nor express it to the parent.
Your child is this way to you, because you are MOMMY. Thus, a child lets it all hang out... the good the bad the icky. Because, YOU are their soft place to fall.
She feels comfortable and 'safe' with you.
Take it as a compliment.