...,sore throat sometimes,nervousness ,stiff neck ,jaw,sore teeth ...was caused by a severe zinc deficency,that turned out to have ...docs suspect Pyroluria which causes zinc deficency etc etc.Long story short...
Bloody or tarry stools refer to a stool sample that is either dark red or black in color. Bloody or tarry stools can indicate bleeding or other injuries in your gastrointestinal tract. You may also have dark, discolored bowel movements after eating dark-colored foods.
Yellow Stool Is a Sign of Digestive MalfunctionYellow bowel color is usually due to a problem in the digestive system and the way fats pass through your body. Yellow stools are less common than red or black stools and can be a sign of pancreatic disease.