Not long after me and my dh first got together (I've known him for years) I moved in with him and his mum (we were both young, I was arguing with my mum constantly after she remarried and my mil said it would be best If I moved in with her and her son). I was grateful for the escape and finished doing my a-levels and dh was finishing his college course. 3 months later I discovered I was pregnant (cilest failure) - mil found out before dh (as he was at college) and was exceedingly pleased chanting "I'm going to be a nanna" over and over again. Me and dh were happy but very very shocked. During my pregnancy things went down hill fast. Me and dh slept on two mattresses on a damp floor, the cat (which mil knew I was allergic to) was allowed to climb all over clean dishes and laundry etc. Mil started becoming weirdly possessive over dh. She told me I was not allowed to claim money for myself (and with no way to pay her I had to work for her, for free). She told me that dh wouldn't move out with me and that if I wanted to go I had to wait until her grandchild was born then I could leave without them both. All through my pregnancy I was sick - she would tell me off for making horrible sounds while puking and she refused to buy me painkillers for my migraines as she said it could be bad for baby. One day my dad had to come and collect me as she had cooked me something and I couldn't eat it due to being unwell which ended with her screaming in my face, me crying my eyes out and getting serious pains in my chest and tummy (dh was at college and returned just as I was leaving with my dad). I eventually went back but told dh I was moving out and asked if he wanted to come with me. He said yes. Mil denied being horrible to me and said I was a brat would just wanted attention.
Me and dh finally moved to our own place and she made it clear she had to visit EVERY week without fail. As soon as she found out I was in labor she waited outside in the waiting room (as she said it wasn't fair because my own mum was in the delivery room). A few months after the birth of my DD I found out I had PND. Mil kept coming over and taking over with my baby (dh said it was only a few days a week and to let her spend time with her gc) when I said it was getting too intense - he told me it was all in my head.
I eventually managed to pick myself up from the horrible low rut I had gotten myself into and grew up (as did dh - we attended parenting classes and cbt together). But my problem now is that Mil still comes every week (even when dh is at work), she still puts me down, she likes to control situations, treats people like crap (the general public and family) and she behaves like a child (which my 3yo DD loves!). Mil has to be the center of attention and always makes me tell her son bad news (like that his nanna was in hospital/that his granddad had died etc). The worst thing about it all is that my dh seems to be oblivious to it. Mil has been stealing money off my dh's relative (but he doesn't believe it is happening) and she keeps bring my DD prezzies EVERY TIME she comes - my DD is starting to expect it and she always works herself when she knows nanna is coming as she can get away with murder.
What should I do? I don't know how to deal with this. I'm worried about my dh thinking I'm making it up. Mil told me she would always be the number one woman in his life on my wedding day.
Any advice?