Aih, batuk lama tu memang leceh dan scary! Since you've done Mantoux test, sputum sample, and X-ray, those are proper investigations, so jangan delay, kena follow up dengan doctor untuk hasil and next steps ya. A few of us mums kena batuk yang tak hilang, and honestly the waiting period tu paling stress, but your doctor will guide you through once they see the full picture. Hang in there!