CAME DOWN WITH TYPHOID FEVER IN MEXICO, 105' FEVER, ALMOST DIED. YEARS LATER HAD A TOTAL KNEE REPLACEMENT, HOSPITALIZED WITH DOUBLE PNEUMONIA ONE WEEK LATER. SINCE THEN (3 MONTHS) EVEN WITH ANTIBIOTICS, HAVE HAD LOW GRADE FEVER AND NIGHT SWEATS,CHEST PRESSURE AND DIFFICULTY BREATHING,RAPID PULSE(108-130 RESTING),FATIGUE ETC. TESTS FOR HEART PROBLEMS,VALLEY FEVER,BLOOD CLOT IN LUNG ARE NEGATIVE. CHEST X RAY SHOWS A LEMON SIZED NODULE (L) SIDE LUNG. DR. SAYS DON'T WORRY ABOUT LUNG MASS AT THIS TIME. MY IMMUNE SYSTEM IS LOW (300),TESTS FOR AIDS,TB, ARE NEGATIVE. ANYBODY EVER RUN ACROSS THIS BEFORE? THIS IS GETTING REAL OLD REAL QUICK. THANKS FOR ANY IDEAS.