Placed a call to my vet friend. Upon further inspection, she is NOT gravid! It is an organ, but didn't specify which. She has put on some weight since this picture, and her tail is getting thicker. Thank you all!
I just placed an order for hornworms last night, thank you for the suggestion.
Also, I was able to reach the person I got her from. He said that he thought she may be gravid because she had been in with a male late last year, but she never laid any eggs at all and that was 6 months ago.
I also tend to believe this guy had no idea what he was doing, because she wasn't very well taken care of. Her set up was completely wrong when I got it, I redid everything. He didn't even have a heat pad for her, he was using heat lamps only. I actually ended up taking in a hatchling from him (which he had received in trade, and passed along to me).
I'm not claiming to be an expert in them, by any means, but at least I've had the sense to do some research. These are the first leo's for me, I've mostly worked with frogs and toads.