Hi,
I completely understand your situation. I like to know more about you for better support like how old is your baby, are you still feeding, how long it is been after you gave birth to the child.
Anger explodes when your tolerance level goes down, when you have suppressed your emotions for so long,when you feel helpless,when you feel you are offended .
So when ever one go through such situations,it is common everyone will show anger but if the intensity and frequency of anger is high . Then it is alarming.
Next Steps
kindly consult a counseling psychologist.