Hmmm, thanks so much for the link!

I have not noticed any rippling when she swims. I don't think her thighs are swollen like that either; I also tend to think the abdominal swelling looks pretty localized. Oh what a dilemma. Maybe she did swallow a rock, or is in the early stages of bloating. I suppose treating as if it were bloat wont hurt anything. If it is a rock though, I suppose there's not much I can do...but if it is, my goodness it must be large!

Here's a picture of her belly from the side