Does eating meat make you vomit a dark brown powdery looking substance? or is that due to something else. felt very nauseous before and right after vomiting?

Sounds like you have an intestinal virus. If the symptoms don't clear up in three days or get worse seek the help of a physician ASAP.

Undigested food in the stomach can produce brownish vomitus and this includes meat. Coffee grounds appearing vomitus usually means bleeding from the stomach lining and black,tarry stools ensue.. You may have had an episode of indigestion or simply an intolerance of the meal you ate..