My father, aged 68, was recently in complete bed rest for the last 2.5 months and was taking akt 4 TB medications. But now he started to move out of bed and walk or sit for a while. However, now he is starting to feel some pain around the low back sides and it increases upon prolonged movement or sitting. Is it due to muscular weakness or could be Tb related? Please note 2.5 months ago, he was having severe back pain and was hospitalized with Sepsis and later was told to have possible Pott's disease. After complete bed rest the pain subsided nearly completely. The pain that time was only around the spine though. What should we do? Although doctors did not tell us but looking at the MRI, it seems there is a mild bulge around l4-l5. My father is saying that he feels that he can feel two small balls shapes at lower back and it seems that the pain is subsiding upon complete bed rest. What should be our next steps apart from continuing medicines, healthy diet and back stretching exercises in lying position? Should we go for some test?