Well it sounds like she is about the same age as my Hermes...but a bit bigger. He eats a half a pinky or a half a pinky's worth of worms or fish every 2-3 days. If she is eating a whole pinky now...I would say give her a whole pinky about every 4 days...or the equivalent of that in fish or worms. Maybe try putting some paper towels down on top of her substrate in her tank when she eats...or a hand towel...just watch that she doesn't take the food under it. I'm not sure what you are asking. Could her not eating have anything to do with what you are seeing on her vent and skin?