Growing pains per se doesn't sound like a likely cause. At this age, though, there are a lot of things going on. I think it is possible that a food allergy or intolerance is at play, possibly with acid reflux and some intestinal stuff such as constipation or a partial blockage. I would try Reliv nutritional products - great nutrition and, since she is already oriented that way, it won't be a hard sell to her. There is a great combination of basic nutrition, a hydrator (which is also a great sports drink, far superior to Gatorade or Vitamin Water or any of those others), and a fiber product which can detox the intestines as well as cleanse the blood vessels (great for allergies). Reliv is patented, has been around for 20 years with great results, and there are other parents you can talk to to share stories . It's a great network, like MamaSource, where you can talk with people who have similar issues and have had phenomenal success. Your daughter does not need to feel this way! She may be getting agitated, but who can blame her, with all this pain and vomiting? She may be eating right, but the AMA has just recommended that everyone be on a supplement because even a "good diet" isn't nearly enough anymore, with all the declining nutrients in our food. Vitamin pills don't work - the papers have been full of research over the past few months about undigested pills of all sorts winding up in the sewage system and in the water supply! So Reliv's balanced nutrition in a liquid form is 95-99% absorbed, and within 20 minutes! I'd love to connect you to some friends of mine, including one whose kid had over 50 food allergies, who responded beautifully to Reliv. It's available through distributors - contact me for more info! Good luck!