<s>[INST] my wife has got tb...mostly affecting the lungs....she has been taking treatment for 2 months now...for the last month or so she has been experiencing pain on the right side of the body...right head, cheeks, feet, arms etc...what does this indicate...please guide [/INST] Thanks for your question on Chat Doctor. I can understand your wives situation and problem. Vitamin b12 and vitamin B 6 (pyridoxine) deficiency can cause similar symptoms. And isoniazid (one of the anti-tubercular Chat Doctor.  So better to get done serum vitamin b12 and pyridoxine levels. And if deficiency then she needs supplements. Another rare cause is brain injury. So if vitamin b12 and pyridoxine levels are normal than get done MRI brain. Consult doctor and discuss all these. Hope I have solved your query. Wishing good health to your wife. Thanks. </s>