@dsm They can become not interested in certain foods for awhile. Just try them again in a week. As for ordering roaches, are you talking about just buying them to feed her, or breed them and then feed her? Either way, only size that's going to catch her attention are the adults. She'll just lose interest in the little nymphs. For dietary staples right now that I feed are: Adult crickets and night crawlers - until I get the Dubia colony going I will replace that with crickets for a staple.
They actually scrounge up their body and use their upper forearms to push the skin forward opening their mouth while doing this. She'll eat the skin. Being puffed up like a balloon could indicate that she's bloated and needs to get rid of waste soon before it could be detrimental... These frogs do carry that appearance for people who say they're fat *****, that's just the way their physique is. Other than that just make sure the temperatures are on the high side with lukewarm water in her water dish. That way you know her digestive track is working and she can go into the water dish to get rid of waste.
Adults don't poop everyday, so don't expect to see anything after they eat. Did she defecate in the warm water bath you soaked her in yet?