Anyone else’s relationship with mother became worse after baby was born?

Sadly, even since my daughter was born, my mother has been nothing but a stress factor in our life. It started with her being a complete selfish/paranoid wrack at the delivery room and then inviting her current husband INTO THE ROOM without my permission. Now all she does is complain about everything I do as a mother, calling me names and telling me how I’m ruining my daughter (because of choice of blanket I chose to lay her down for a photo) and that she can’t wait to take her away from me! I wake up in night sweats thinking she is in my house trying to steal my daughter. She messages mean things to me on daily bases, shows up uninvited and accuses my husband of ridiculous things.