Some symptoms related to HIV infection include: 1  Diarrhea. 2  Fatigue. 3  Fever. Frequent vaginal yeast infections. 4  Headache. Mouth sores, including yeast infection (thrush)  Muscle stiffness or 1  aching. Rashes of different types, including seborrheic dermatitis and psoriasis.  Sore 1  throat. Swollen lymph  glands.