You might be suffering from Potts Paraplagia.
Swelling in your spinal cord
may be due to -
!) Inflammatory Oedema due to tubercular debris
2)Bony disorder like internal gibbus causing pressure upon cord
3)Infection of spinal cord
You ave to visit an orthopaedic surgeon
for thorough clinical and neurological examination & MRI
of dorsolumbar spine is required.