Your immune system has been severely compromised when AIDS strikes. You'll be more susceptible to illnesses that a person with a strong immune system wouldn't typically get. Opportunistic infections or opportunistic tumors are what these are: Sweats, chills, recurring fever, chronic diarrhea, and other signs and symptoms of some of these diseases lymph nodes that are swollen, persistent white patches, or odd lesions on the tongue or in the mouth, persistent weakness, persistent, inexplicable weariness, and weight loss.