thanks for your question i completely understand your question sometimes tubercular consolidation happens in the hidden areas like posterior to clavicle or post to the heart . these places have to be covered by lordotic view if the symptoms are present or other method to scan all the suraface area of lungs is ct scan but tubercuosis can be confirmed by sputum afb smear examination which is a better specific marker. gold standard to makeout active tb infection is culture of sputum for tb bacilli. if your tuberculosis is confirmed by smear examination then you should consult with a pulmonologist who can request for a sputum culture by mgit or line probe assay that would lead to the type of tb because now. a days treatment for tuberculosis is different for normal tb , mdr tb , xdr tb. as you have taken many courses of anti tb treatment you need to get these tests , you can consult the nearest dots centre for the details thanks feel free to ask more questions may god bless you with good health