Postpartum depression

Hello ladies.  I'm a new mom and 2 in the half months PP, my SO have went trough this before 3 times SO to him this is normal and he is used to it, but to me since the birth my precious baby boy I have been experiencing some crying episodes where I  cry just to cry, but lately it have gotten worse especially if the baby keeps me up all night. I just scream like I'm crazy to get the frustration out of me and put my baby down in his crib and walk away because his screaming and crying gets me so irritated.  Is that normal? My SO thinks I get a walk in the park just because I'm home all day , he acts like I'm over reacting in regards how the baby is. Especially when my baby sleeps through the night at my moms house and at my SO moms house, but at home he wants to wake up every 1-3 hours depending on the day to be fed and then he only ends up eating 2-2.5 oz cuz he would fall asleep in the middle of the feeding n end up waking up every hour. He usually eat 4-4.5 in one sitting in the mornings.  He takes formula.  Me and my SO have relationship problems since the birth of our baby boy because I'm constantly tired no energy to do anything else just always want to sleep. We haven't had sex since I got pregnant and 8 weeks PP we tried and he didn't even put it in all the way and it hurt like hell and I started to cry and since then we haven't tried anything again. He gets annoyed and frustrated with me cuz I don't even want to give him head when he doesn't even try to get me in the mood or just caress me to make me feel good about my self and my body. I'm so angry at my self that I can't not over come this fear of painful intercourse I have been suffering from that for almost 3 years after I was diagnosed with HPV and high grade lesions on my cervix from Pap smears in 2011 and since then until early 2014 I had to have 2 cevical biopsies in multiple spots followed by 2 cervical freezing and since then anytime we tried to have sex I would be in pain internally.  I have went to different OBGYN and went back to the doc who did all of the procedures they can not find a problem as to why I have painfully sex, my husband keeps getting mad at me and says it's in my head and most likely it is but idk how to cope with it and get over the fear of painful sex. Even when I try to please my self it doesn't feel right.  I forgot how good it supposed to feel and I forgot how to feel good about my self and feel sexy especially ow after having a baby. Me and my SO keep constantly arguing and I'm getting so tired of it and now he does too. I just need help but idk where to turn I know he needs a counselor too because of his past marriage she left him pretty messed up that I feel every lil thing happens in our relationship he keeps comparing it to his with hers and what's worse the he constantly has to talk to her and be all friendly cuz they have kids together and he doesn't wants to piss her off to the point where she doesn't let him see them. But there should be a line where he needs to stop her, cuz this women when she gets drink she texts him all the time about his and hers marriage and stuff and he goes along with I have told him bunch of times about it I don't feel good about it she has wrong intentions I know he won't do nothing idk about her btw she have been with some one already since they broke up in 2010 she had a guy move in few months after and about a year after that she got pregnant. I wish I could just be a bitch and tell her "new" men what she does when she drinks but that will make things worse for everyone.