Hello, Your cousin is a known Diabetics. Diabetics are prone to Tuberculosis
than non diabetics. I thinking this may a Psoas Abscess
following TB spine. MRI may be taken to explore the problem. Consulting a Orthopedician may be a good idea. Continuous vomiting
may be suggestive of any impingement on the nerve roots are the spinal cord
itself. Immediate attention is needed.