Post Partum Emotions..

do you think you would be able to tell wether someone was just going through the post partum crazy hormone thing or wether they could be going through post-pardum depression... especially if it was only someone you talked to frequently but didnt see in person? im not even sure whats going on here, i think this is normal but i could be waay off so i wanted other peoples opinions of the situation..

my cousins a new mom and she seems to be very fragile at the moment. When i first talked to her about it i told her that i felt the same way, your emotions are all over the place because your hormones are all wacky after you give birth, id be happy one minute and the slightest thing could make me cry or made me xtremely angry- that for the first week or so after i had my daughter i just wanted to take her into a closet and hide and for everyone else to jsut leave us alone... and that its one of those things people dont really warn you about while your pregnant, no one seems to mention that after you have the baby your going to be a little nutty for a week or two. My cousin on the other hand insists that its not normal and that other people dont feel the way she does and that its just not normal for her tofeel like crying out of nowhere and for no real reason... she said she tries as hard as she can to keep herself busy because if shes not concentrating on something her mind wanders and starts to think theres something wrong with her.
As far as the baby goes shes doing great honestly shes a natural mom, if she could hold that little girl all day and never put her down she would, her daughter absolutley is everything to her, so its not like shes having issues with dealing with being a parent, she loves every minute of it.. its just her emotional state she cant seem to get a grip on

-shes always been a little, i guess neurotic would be the word.. shes definatley a worrier.. she gets pretty easily worked up.. i told her every day that goes by it will get better and her emotions will go back to normal but she just says i hope so, i cant take this much longer.. she also seems to not want to accept hormones as the answer to why she feels this way.. she says that there has to be a reason for her to just want to cry all of a sudden out of nowhere.. i tell her hormones, she says i hope so.. i just dont know what to tell her to make her see that how shes feeling is normal(at least i think it is?), i told her how i felt and its like it didnt matter, she still thinks somthings wrong with her.. i told her to ask her doctor and shes says yeah i probably will.. but she hasnt

(yes she is the same cousin who told me recently that shes still in a lot of painand its "not normal" - which i asked her about this morning and wouldnt you know, its getting better.. as i said shes a worryer)
-i also told her that she needs to try and get more sleep.. that the more sleep deprived she is the crazyer shes going to feel.. she only sleeps wen the baby sleeps at night, she doesnt ever try to nap during the day while the baby sleeps (he daughter is a week old) I told her to have her boyfriend for one night do 2 of the baby's feedings in a row so that she can get a solid block of sleep, nto just 2 hours at a time and it would make a world of difference.. she said no he works too much i feel bad i cant ask him to do that once he goes to bed i dont him to have to wake up, she says hes offered tons of times because he can see how exhausted she is but she always refuses... i dont know im just running out of things to tell her.. its like i offer suggestions to help and she doesnt want any of them.. i want to help her but im at a point where im not sure how to
**her baby is less than 2 weeks..& i wish this wasnt the case but she lives 6+ hours away