Hi and welcome to HCM. PTB is curable and if you finished complete coarse of treatment then your are cured. The x ray findings of TB even after treatment may persist. A chest x-ray will not show this improvement until weeks or months later. Fibrosis of upper zones of lungs are common finding after TB treatment. I think you might be having this and their is less possibility of reinfection. If their are no other symptoms like fever or cough its less likely to be pulmonary TB. All the best. Regrads Dr Santosh