i’ve had him for 4 months and he was consistently eating, about a week or so ago he was eating less and less. i went out of town for 4 day and when i came back he was hiding in a shaded area. i didn’t think anything of it and the next morning he was still there. i came home tonight and picked him up because he wasn’t eating and still hiding. i soaked him in a small amount of luke warm water. his head is tucked in and his legs are not moving if i tug them lightly. the bottom of his shell is mushy. I just don’t know how this happened or what i did wrong