The majority of the symptoms you reported (lower back pain that radiates through the ischium down the calves, ankles, burning urination, sphincter spasm when defecating, and affected sexual life) seem to be related to a condition that affects the nerves of the spine or the spinal cord itself. It is hard to tell exactly what might have affected the spinal cord.
Given the fact that tuberculosis of the spine was found in your family, you might be infected with tuberculosis as well. By coincidence, you might have tuberculosis developed on the spine, too. A tuberculosis abscess, which puts pressure on the nerves, might cause the symptoms described above.
The mild scoliosis that was found might also start to show initial symptoms. The scoliosis is more likely to be the cause if the pain in the legs is always on the same side.
You might want to visit a specialist in infective diseases for the possible abscess caused by tuberculosis of the spine. Tests for present infection with tuberculosis might be needed, as well as ordinary laboratory tests.
If tuberculosis is ruled out, then you might want to visit an orthopedist to check if a corset or other orthosis might be helpful to relax the spine muscles and thus decrease the pressure on the nerves that leave the spine.
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