Thorax rntgen negative for tuberculosis. two months irregular left chest pain radiating to back. ecg, holter normal. which tests should be used - tb?

Unlikely: It is unlikely that the chest pain you describe is owing to pulmonary tuberculosis. Get a mantoux (skin test) for tuberculosis. If it is negative, you do not have TB especially given your normal chest X-ray. Where you exposed to someone with active TB? If you were you need to work with your doctor and public health to make sure everyone is covered.