The type if fever
you are suffering from is not classical finding in case of pulmonary tuberculosis
. I would suggest you to have a sputum investigation to make the confirmation regarding the infection. AFB sputum investigation is considered to be the best investigation for the pulmonary tuberculosis.
The medication you are taking for suspected tuberculosis is ok, but this should respond in a week or two weeks. It does not take one month to relive the fever in case of tuberculosis.
Another important thing is that you are also taking medication for HIV
and many times there is interaction between the HIV medication and the antitubercular drugs, you should discuss this with you doctor to make appropriate changes in the antitubercular medication.
About the injection which you were having for fever are may be the antipyretic
drugs which reduces the fever for 1 day.
Thanks and take care