Try for free with code SEE4FREE Â». Allergy-related sinus congestion can lead to dizziness or a more severe type of dizziness called vertigo. Keep reading to learn what causes your allergy-related dizziness, and how to treat it.
Report Abuse. Brown. Feces are mostly shades of brown or yellow because they are also made up of an orange-yellow substance called bilirubin that is present throughout the body and particularly in the intestine. When iron combines with bilirubin, it gives it a brown color.eport Abuse. Brown. Feces are mostly shades of brown or yellow because they are also made up of an orange-yellow substance called bilirubin that is present throughout the body and particularly in the intestine. When iron combines with bilirubin, it gives it a brown color.
Stool (feces) color is most commonly brown. When stool color changes an person often becomes concerned. The presence of the bilirubin in the bile (a breakdown product of the hemoglobin in red blood cells that are normally destroyed after a useful life of several weeks) is generally responsible for stool color.n most cases, stool color changes are not symptoms of disease. Changes in stool color may be due to: 1  Diarrhea may cause green or yellow stools. 2  Some foods (beets, Jell-O, licorice).