I had my bladder nicked and walked around for 24hours (after I could get out of bed) with a bag full of bloody urine. It wasn't exactly a pretty look. Luckily for me I'm pretty resiliant and bounce back quickly because some women walk around with a catheter and bag of bloody urine for longer than I did.
I also had a pph in theatre - luckily they stopped it just before I reached the point of needing a blood transfusion. Funnily enough the normal blood loss in a c-section would be regarded as excessive if it were in a vaginal birth.
I would reccomend that you read through the birth de-briefs and c-section forums.