Not Medical Advice: No, green stool is not a warning sign of HIV.
As explained by Mayo Clinic, stool comes in a range of colors. All shades of brown and even green are considered normal.
Stool color is generally influenced by what you eat as well as by the amount of bile, a yellow-green fluid that digests fats in your stool. As bile pigments travel through your gastrointestinal tract, they are chemically altered by enzymes — changing the pigments from green to brown.
You cannot rely on symptoms to tell whether you have HIV. The only way to know for sure if you have HIV is to get tested.
The symptoms of HIV vary, depending on the individual and what stage of the disease you are in: the early stage, the clinical latency stage, or AIDS (the late stage of HIV infection). Find out the symptoms that some individuals may experience in these three stages from AIDS.gov.
Learn some facts and tips on HIV Aids prevention for young people at _eSchoolToday.