This happened to me, especially bad with my second. About 6 mths after my 2nd was born I started experiencing really bad mood swings, I was very depressed (cried all the time), and I started pulling my hair out (literally)...it was scary. My period had already started even though I was still breast feeding. I recognized something serious was wrong and went to the doctor who was amazing!! I broke down in her office and she was just so understanding. It was pretty much determined that I was experiencing postpartum depression and prescribed me an antidepressant and it has done a world of good! I would tell her to go to her doctor and talk about all her symptoms....hope she finds a solution soon.