Why does it hurt so bad??

Long post ahead lol

Okay so last year July I gave birth to my boy who weighed in at 9.2lbs ... no tears or anything and all natural , drug free birth ...

Fast forward a couple of weeks and I started having really bad pains down there .... not just muscle pains but I swear it felt like some bone down there was making me hurt so much ....

Fast forward to today, I’m 36weeks with my girl (I know, small age gap - unplanned baby but definitely NOT unwanted 😍🙂) but the pain is back and for the life of me it gets so bad that I can barely walk 🙁 if I sit it isn’t to bad.. if I lie in bed it’s okay but as soon as I try turn or sit up it’s extremely sore .. and once I’m up and start walking I feel like I’ve literally got a broken vagina or something haha

I did tell my midwife about it but she just told me to do pelvic floor exercises which really don’t do anything 🤦🏽‍♀️ anybody else had or know what I’m tryna explain here??? Lol