I am really concerned that you are suffering from illness.
Its not that easy to say, in which part is your TB. Detailed evaluation is needed before coming to a conclusion. From your reports, mantoux is strongly positive with elevated ESR
which supports a diagnoses of TB.
But my concern is 9 months of treatment is unnecessary for TB, 6 mths is good enough. Usually after 6 mths of treatment ESR comes down. But in your case it has increased, and also you have joint pains
. Its always better to get evaluated by a rheumatolgist to rule out joint related problems. Also decision regarding further continuation of ATT should be discussed with your doctor.
Don't worry you will be alright. Just visit a rheumatologist
Dr Balaji C