I see.
Weaken as in due to heavy antibiotics causing side effects. Because I heard the pharmacy doctor say
will cause pee orange, skin rash and sticky sweat...

Well we actually visit private first, then also go to GH as back up and go there get cheaper medication.
Private Hospital did some biopsy on the body organ and sent to outsourced pathology lab, report come out have some bacteria that looks like TB in the slides. (not sure the actual way to describe this)
Then my parents took the report to GH as well, doctors suspect it is TB, then send to IPR do Chest X-Ray. But nothing in lungs, seems healthy.
The we thought might be Latent-TB become active in other parts of body when my father get UTI. (My father did surgery in GH to remove a mass on his nose in January, I wonder is it at surgery there tools not clean get infection la.)
After first visit at IPR, they told my dad start 6 month long treatment, I feel something not right in the procedure. Go to the private hospital on the same day hear second opinion from the doctor.
Private Doctor advise he will request from pathology lab to do slide reading again, confirmed it isn't TB, and told us not to take the TB medication at the mean time.
So we just follow private doctor's instruction.
Then we just go back IPR told them, we don't want to take medication until the culture say positive for TB then only start take medication....
But IPR never came back with culture results despite my dad did few blood and sputum collections in GH and IPR...
So we kinda gave up on Government Healthcare side...
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But 6 months later TS, you finished your TB Medication, but negative from the initial culture (first sputum) sample. Then I feel weird lah, since initial Mantoux Test you say positive edi, kinda weird they can't grow it...
If you say 6 month later, you did another sputum test, the lab didn't managed to grow the TB sample, that one would be normal, means you cleared from TB.
"A normal sputum culture can take 1 to 8 weeks to provide results. A rapid sputum test can tell if a person has TB within 24 hours."
Ahh you mean the side effects during the course of meds. Yea I got Orange pee only as far as I can remember. But if the patient's age is high, the side effects will be more severe.
Since you decided to trust the private side, maybe it's time to revisit them to get some idea on the continuous weight loss.
As for the culture, if you read about it, you will see it is actually difficult in culturing them, and long time as well. Even my initial sputum submitted to private side, also fail to do so.