If you have eaten too much fat, more bile will be produced by your digestive system. Bile is a digestive juice that breaks down the fats. Throwing up green bile is not uncommon as bile is often a green-yellowish color. Similarly, a child vomiting green bile may be the result of too many sweets. However, if you take medication for the stomach upset, you may actually produce black vomit.
http://www.majordiseases.com/vomiting-black-bile/
It should stop the empty-stomach vomiting (she's vomiting bile--which is hard to get out of carpets). She also might sleep later in the morning if you want to sleep in now and then. Kathy and Q (CRT Qadeer from Fuzzy's Cannon and CRT Bonnie) and. Jane (WW's Aunt Jane from Trent Lee and Aunt M); photos to come.
http://forum.greytalk.com/index.php/topic/294028-vomiting-because-of-an-empty-stomach/
#1. For the past few weeks my 3 year old greyhound has been vomiting yellow, smelly, frothy liquid every couple days. She has been acting, eating, and drinking normally. I decided to google it, and a lot came up about dogs vomiting because of having an empty stomach.
http://forum.greytalk.com/index.php/topic/294028-vomiting-because-of-an-empty-stomach/
Bilious vomiting syndrome occurs when bile abnormally enters the stomach from the intestine, causing irritation and vomiting. The presence of bile is indicated by a watery, yellow-green substance in the vomit contents. If vomiting does not occur and the bile remains in the stomach, the irritation to the stomach can lead to gastric reflux.
http://www.petmd.com/dog/conditions/digestive/c_dg_bilious_vomiting_syndrome
Many dog owners believe that any yellow or green vomit is necessarily bile, but this is not true. Food coloring in pet food can alter the color of your dog's vomit, and vomit consisting mostly of water may look like bile. Whenever your dog vomits, it's a good idea to withhold food until the vomiting stops. This gives your dog's system time to clear out the source of the problem.
http://pets.thenest.com/causes-dog-vomiting-bile-4096.html
If your dog's stomach is empty, the grass may cause your dog's stomach to produce more digestive enzymes, and this can result in vomiting bile. Unless your grass is treated with fertilizer or pesticides, it's generally safe to allow your dog to continue eating it, as it can help ease her stomach problems.
http://pets.thenest.com/causes-dog-vomiting-bile-4096.html
Severe constipation can cause intense abdominal pain, bloating of the stomach and intense vomiting. Because of bowel backup, digestion is nearly impossible. Brown vomit smelling similar to fecal matter will be an indication of this problem. Reach out to your doctor immediately to find a solution for this condition!
https://www.unitypoint.org/livewell/article.aspx?id=d36af789-0de7-4865-aa9a-c2281da7d093
Blood from your mouth, throat and teeth may be in your vomit and is not a cause for alarm. When you have a significant amount of vomit that is bright red in color or resembles coffee grounds, you should contact your doctor immediately. This can be the result of multiple conditions including, but not limited to:
https://www.unitypoint.org/livewell/article.aspx?id=d36af789-0de7-4865-aa9a-c2281da7d093
Bilious Vomiting Syndrome in Dogs. Bile serves important functions in the digestion of food and removal of waste materials from the body. Bile is created in the liver and stored in the gallbladder until food has been ingested.
http://www.petmd.com/dog/conditions/digestive/c_dg_bilious_vomiting_syndrome
In most cases, yellow foam indicates that the dog's stomach is relatively empty of food. The yellow color comes from bile, a digestive fluid that's produced in the liver, stored in the gall bladder and then released into the small intestine just below the stomach. A dog may vomit yellow foam simply because his stomach is empty and the bile can be irritating. If your dog is otherwise healthy — and he's eating and defecating normally — it may help to reduce the time in between meals. But this doesn’t mean that your dog should be fed more.
http://www.vetstreet.com/our-pet-experts/why-does-my-dog-vomit-yellow-foam
what color is dog bile on an empty stomach
The color of dog bile on an empty stomach is yellow. Dog's bile is of the yellow color on an empty stomach.