which one of the following is not the most common symptoms of hiv?
['Rapid weight loss.', 'Recurring fever or profuse night sweats.', 'Extreme and unexplained tiredness.', 'Prolonged swelling of the lymph glands in the armpits, groin, or neck.', 'Diarrhea that lasts for more than a week.', 'Sores of the mouth, anus, or genitals.', 'Pneumonia.']