Do not try mineral oil on her. If she's already struggling against you trying to feed her she could inhale it and mineral oil in the lungs = death. People on here have commented on it happening to them. If she is already passing feces then there is no need for mineral oil. Dupontman - sorry for stomping on that. It can be beneficial in some situations, but I don't think this is the right one. No offense intended.
Something I was pondering...what do chams do when they hurt or are trying to scare something off that might hurt them? They try to be bigger to be intimidating. And what do you do when your back hurts? You lay in weird ways to try to minimize the pain and maybe hold your breath when it's spasming. She has broken legs, and she may be puffing up because she's in pain. By making her belly bigger there is less weight on her legs. She can flatten out when she wants, so you've ruled out eggs, and sounds likes she gets really flat and is passing feces, which makes an obstruction less likely. And I'm not surprised she's not defecating as much since she's not eating as much. I'm starting to think she is just painful and is doing what she can to minimize it. This is a theory of course, I don't have proof, but it seems to make sense given the other things you're able to rule out...
Unfortunately pain control in reptiles is poorly understood and there are very limited options that may or may not be efficacious. She's young and given enough calcium she will heal those bones pretty quickly. The goal is to just keep her comfortable until that time...
Something I was pondering...what do chams do when they hurt or are trying to scare something off that might hurt them? They try to be bigger to be intimidating. And what do you do when your back hurts? You lay in weird ways to try to minimize the pain and maybe hold your breath when it's spasming. She has broken legs, and she may be puffing up because she's in pain. By making her belly bigger there is less weight on her legs. She can flatten out when she wants, so you've ruled out eggs, and sounds likes she gets really flat and is passing feces, which makes an obstruction less likely. And I'm not surprised she's not defecating as much since she's not eating as much. I'm starting to think she is just painful and is doing what she can to minimize it. This is a theory of course, I don't have proof, but it seems to make sense given the other things you're able to rule out...
Unfortunately pain control in reptiles is poorly understood and there are very limited options that may or may not be efficacious. She's young and given enough calcium she will heal those bones pretty quickly. The goal is to just keep her comfortable until that time...