Hi OP,
Sorry to hear you're having to deal with this.
I had very 'normal' periods before I had my daughter who is now six months. I lost a lot of blood after the birth and ended up in surgery too, blood transfusions etc.
My periods are really heavy now, but, have become a bit better over the last two months (not sure if I'm just used to them though). I couldn't breastfeed DD, and so was back on the pill by day 21. I was bleeding lightly throughout whole month, then a really heavy period with maternity pads.
I had blood tests, swabs, ultrasound, the whole works but everything came back clear for me - not sure if this was better or worse? Not finding something that can be fixed you know? They've put it down to hormones for me.
Please let us know how you get on. 