My consultant is a member of the Birth Trauma Assc which recognizes birth trauma, even for women with so called perfect labour and births, and everyone fine after wards - except - Mentally.
She was adamant you can never tell with birth what caused what.
Did an "intervention" happen due to hosptial practice ie being monitored, or due to that birth needing that intervention. No figures or feed back is clear. There is no form after labour to ask every patient how was it for you is there! After my first labour I would have said bloody awful - but my labour would have been recorded as text book and shoved into some stats somewhere that all was well. Medically it was - emotionally I had to have an ELC second time round.
I mentioned being denied the epidural due to it slowing labour down, Consultant didn't agree, she said you do know, you cant pin one on the other in such a way as every labour is different.