herethereandeverywhere, I had a planned CS for my 1st DC, after a diagnosis of severe tokophobia.
Apologies, I have read your post very quickly, as this is exactly the kind of story that horrifies me -
My thoughts, FWIW - your aftercare and your baby's weightloss and feeding problems won't be something they take into account when you ask for a CS. They just don't generally see it as their 'business' or problem. They will probably just tell you you werte unlucky and it will all be different this time. So it's not a good thing to use in arguing your case, although you can certainly see how it all added to your trauma.
In fact, a lot of your experience they can argue is unlikely to happen again, or can be avoided through better management.
Whatever. I hear in your post that you aren't interested in going down the road of 'suck it and see' with a VB, but want a CS.
In which case, your best arguments are foecal incontinence, and they will be most concerned if this is still an issue in any way - and mental health. If you are going to suffer a huge amount of stress during the pregnancy, and are worried you might get panic attacks/extreme anxiety, insomnia or depression, or already are experiencing this, they should take you more seriously. If they worry you might get PND or have/will suffer PTSD episodes, it should sway your case. It will be helpful if you can get HCPs onside in this respect - so it's not just you telling a consultant you are worried, IYSWIM.
So you could ask for a referral to someone on the perinatal psych team, or get your GP both to record in your notes that you are under extreme mental pressure, and you'd like urgent referral to psychiatric services or a counsellor.
I've also had the impression from other women's stories that sometimes the well organised woman worried about 'making a scene' has gone in to consultant's meetings with a dossier of arguments to hand, a rehearsed speech or two, and come across more like a barrister than someone with genuine emotional and mental distress. Now, I'm of the opinion that women should be listened to, full stop. But it often seems that unless a consultant or MW sees that someone is in genuine misery, they don't take it seriously. So if you are adamant that you don't want anyone to see you in tears etc, that's fine, but can you write down your feelings honestly and in full and let your consultant or MW or whoever read them. (and ask that they remain on your notes - they can be sealed so the world and his wife don't read them if you want).
I'm sorry you've had such an awful experience. It sounds like you have had a positive MW so far (mine was wonderful), and so that's helpful, at least.