** 1. as history says engaged in high risk activity thus determining the risk for HIV one has to consider the range of sexual activities you engaged in, thus appointment with a Venerologist for clinical examination and investigations will decide the future possibilities and management. 2. lump on the side of neck, too requires clinical examination for swelling of lymph node [site,temperature,tenderness,consistency] 3. If cough has changed over the last 3 months, then one has to go for immediate Chest X-ray along with constitutional features like loss of weight or no response to antibiotics. 4. due to associated cough,gastritis or associated esophagus problem, one can have heart burn resulting in chest pain. PS: The health will depend on the health of immune system [ i.e. on CD4 cell count and viral load in the blood,as well as on the exposure to infections and diseases in the environment].