###Human: Why am I having fatigue, increased saliva and throat pain after unprotected sex? ###Assistant: Hi. First, HIV symptoms are non-specific and are common to most infection and are referred to as flu-like symptoms. HIV infection symptoms in the acute phase often go undetected and are self-healed without any active intervention due to an intact immune system. These symptoms are only effective if they occur 2 to 5 years after exposure due to a crippled immune system. So far, in your condition, these occurring infections are stress related due to over activity of hormones (vagal stimulation) causing diarrhoea, running nose, sore throat. Mouth ulcers are moreover due to vit B complex deficiencies, dizziness can be due to a simple ear problem. So, do not worry about being infected, once the fourth generation is negetive after 28 days, then nothing to worry. You are free of infection.