What are the symptoms of Relapse of Pulmonary Tuberclosis.? after 9 months of medications...and smoking ...can it relapse?

What are the symptoms of Relapse of Pulmonary Tuberclosis.? after 9 months of medications...and smoking ...is there a possiblity that there can be a relapse of the disease.... smoking and drinking . the course was completed and it was for 9 months. but now the caugh has started again ....what can be done from stopping this to reoccur ..apart from smoking - quit??? please suggest and talk abt the symptoms as well

Thanks