Here's some info on pancreatitis. You may want to take Jasper to the vet, because pancreatitis is life-threatening.

Rich and fatty foods. These typically include the giblets, dark meat turkey and turkey skin, potatoes and butter-coated vegetables, gravy and stuffing. Too much fat can result in pancreatitis, which is a potentially life threatening condition.

Pancreatitis occurs when the dog is trying to digest a very fatty meal. During digestion, the pancreas produces enzymes to assist in the digestive process, but with pancreatitis, too many enzymes are produced; as a result the pancreas becomes inflamed and can even begin digesting itself. The symptoms are vomiting and diarrhea, usually bloody. Your dog can become dehydrated and die.
http://petplace.netscape.com/Article...asp?artID=4406

http://petplace.netscape.com/article...w.asp?artID=15
What to Watch For


Loss of appetite

Lethargy

Vomiting

Abdominal pain

Diarrhea

Fever

Weakness