Stop feeding the turnip greens. It's possible they are causing all of this. They are a cruciferous leafy veggie, and can possibly be the cause of the gas and upset stomach. There's another member on here who's rabbit had problems with turnip greens causing stomach upset. So stop those completely and see if she starts to improve.
The poop is looking pretty good, so as long as she is pooping even a little, then she is also eating at least a little bit. It does help the digestion, for them to run around and play. So let her run around as much as possible. Yes, the reason they stop eating is because of pain and/or nausea. It could be from gas pain, or other health problem causing the pain. That is typically why a pain med is given when a rabbit is experiencing GI stasis. The best pain med to use for rabbits, is metacam. But it is rx, so you would have to get it from your vet. But if this is food related and you are able to sort out if it is the turnip greens causing it, or maybe something else, then she should stop having gas and start feeling better, and the pain meds wouldn't be necessary. But that belly does look like it may be bloated in that picture.
So has she been eating any hay? Hay really is one of the best things for her to be eating, but I know that she has to do it on her own. You can't really make her eat it.
The poop is looking pretty good, so as long as she is pooping even a little, then she is also eating at least a little bit. It does help the digestion, for them to run around and play. So let her run around as much as possible. Yes, the reason they stop eating is because of pain and/or nausea. It could be from gas pain, or other health problem causing the pain. That is typically why a pain med is given when a rabbit is experiencing GI stasis. The best pain med to use for rabbits, is metacam. But it is rx, so you would have to get it from your vet. But if this is food related and you are able to sort out if it is the turnip greens causing it, or maybe something else, then she should stop having gas and start feeling better, and the pain meds wouldn't be necessary. But that belly does look like it may be bloated in that picture.
So has she been eating any hay? Hay really is one of the best things for her to be eating, but I know that she has to do it on her own. You can't really make her eat it.