HIV/AIDS passed through the blood, not the saliva. You can remove that from your Top Ten disease fears. TB, Colds, Flus and a lot of other disease can be in spittle. Mono (mononucleosis) is most likely what you caught. The infection is transmitted by saliva, sexual contact, respiratory droplets, and blood transfusions. Symptoms include: * Fever * Sore throat * Enlarged lymph nodes, especially in the neck * Malaise (vague ill feeling) * Frequent tiredness or fatigue * Loss of appetite * Muscular aches or stiffness A physical examination reveals an enlarged liver or an enlarged spleen. The liver and spleen may be tender when they are gently pressed (palpated). There may be a skin rash. (NOTE: Skin rash) Treatment: Most patients recover within 4 to 6 weeks without medication. There is no specific treatment available. Antiviral medications do not help. Rest is needed, sometimes for a month or longer to regain full activity levels. Relief of symptoms is provided with analgesics, and warm salt water gargles for sore throat. Edit: Addendum: This is not a diagnoses, this is my opinion based on very limited information - you shuld see a doctor for any ailment/condition you are not familiar with yourself.