Dear Doctors, I'm Lloyd, i had my medication of TB year back 2007, however since 3 weeks now i'm experiencing chest pain and post nasal drip w and all things are normal like my appetite, i don't have cough and have no fever; to deal my agony, yesterday i went to the nearest laboratory to have a chest X-ray and the result was "minimal fibroid PTB infiltrates are noted in the Right Upper Lobe of undermined activity. heart is not enlarged. diaphragm and sulci are unremarkable." thereafter i immediately went to our medical center and the doctor bade me to have sputum culture and sensitivity. doc, please interpret what does the x-ray result mean. and presumptively how long will be the medication?