Posted: Sat May 03, 2008 2:40 pm
That pancake shape looks like your turtle is in an early stage of metabolic bone disease (forget about the front/back rising and sinking, it looks like the bones that are supporting the shell are weakening). You absolutely can't get her to a vet?
She (and your other turtle as well) needs a lot more calcium in the diet and the opportunity to bask under UVB rays. You didn't say where you're located, but if it's getting warm enough where you are, get them outside to bask under the sun. Inside, make sure they've got a good UVB light (it doesn't sound like the light they have is one). Cuttlebone will help, but I'd even get a powdered calcium supplement (Rep-cal can be ordered on line if you don't have a petstore near you that sells it). Moisten the pellets and dip them in the powder and handfeed them to her.
Instead of lettuce, feed dandelion greens (I've never heard of red cabbage being high in calcium).
This may look recent to you, but I think it's more likely the change has been taking place over time.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-