Hi an dthanks for the query, Continuos sorethroat and chronic lung infections deserve a very keen clinical evaluation. I suppose a tuberculin skin tests and sputum examination were done to exclude the possibility of pulmonry tuberculosis. Doing a HIV test could also be worthwhile and a fasting blood sugar. Immune suppression could predispose to have continuos sore throats and lung infections. Other clinical syndrmes could also explain the scenario. A family history of asthma and other lung disieases could also be useful to know. Changes in urine color could be subjective or objective. Clinical observation and appreciation could be necessary. A decrease in the quantity of water you drink or recent change in environment could change urine concentrations, and consequently changes in the colours. Consulting your primary care physician for an appraisal and presription of tests, if need be, is my suggestion. thanks and best regards, Luchuo, MD.