Welcome to JA and thanks for asking
What medicines you are taking?
Which part of your body is effected by TB ?
Since how long you are on anti TB drugs?
Thanks for the information
It can be the side effect of your medicines
Twitching of the arms or legs can be due to irritation of nerve or muscle
Being on Aanti TB drugs you also need to get your kidney and liver function tests done as well to make sure they are not effected by the drugs. A check of your blood counts should also be done.
You have to be on pyridoxine as well to minimize the risk of neuropathy which can be a complication of isoniazid.
So do get these tests done and have an evaluation
Feel free to ask if you have any further query
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