dear experts "Yin zi"is emerging in recent years in special patient groups in China, refers to the sexual behavior after physical discomfort, early symptoms similar to HIV infection, but after repeated in the authoritative department detection, showed HIV negative patients. Main symptoms: thick white fur, fatigue, weight loss, muscle pain, joint pain (jump), rash, headache, diarrhea, swollen lymph nodes, joint pain, stomatitis, pharyngitis ring, conjunctivitis, skin nodules, muscle atrophy, dry skin, fatigue, pulmonary nodules etc.