It was a good 10-15 minutes after the birth to the separation gush, then another 5 or so till delivery of placenta. yes, symptomatic... tachycardia, dizziness. Got her out of tub & she crawled to the bed, as she was too weak & dizzy to stand, let alone walk. We were in the bedroom a good 30 minutes or so before I went back to check the EBL in the tub. That was plenty of time for it to clot!
I can't follow your reasoning. If blood volume contracted, sounds like she had less to loose than average, not more? no HTN, no edema, great diet...? We figure EBL was about 5 cups, I've seen worse, this was just strange. I figure big baby, big placenta, large placental site, greater than average EBL, but those wierd "cobwebs" in the tub?!?