Is it just me or is it my post partum?

After i gave birth to my daughter, i see that i get frustrated easily now. And when im mad, i get really angry, all fired up, id cry too. I wasnt like this before, i used to was humble. Now i see that i cant control my anger, i get furious when im mad. I would throw things, scream at the top of my lungs, hit things, i get all hot. Ill cry too. Its scary. My husband says ive changed too and not like this before. I said it could be post partum depression, and he would compare me to other women that theyre not like how i am after giving birth. He says its not post partum depression, he says theres no such thing as post partum depression. He told me its just me getting used to being evil like this, so i became this way. He even said its a sin thst ive developed. He told me im growing backward, not forward. He says its the same as ptsd, there id no such thing as ptsd or post partum depression, cause hes been to war and never got ptsd. So those two does not exist he says. Idk, whats wrong w me? Is he right? Or wrong?