Bilateral basal ganglia calcification is a condition where large calcium deposits form in the brain, potentially causing movement issues like stiffness and tremors. These deposits can result from inherited disorders or metabolic disturbances. Treatment typically involves drug therapy and counseling, tailored to the specific symptoms and underlying cause.

A spinal cord issue such as hers might result in weakness of stepping and the absence of the sense of touch. It occurs when the spinal cord sustains damage, generally from events such as a car ramming into it. Exercise makes muscles stronger, but full recovery might not be attained. 

If you are experiencing neck stiffness, numbness at the back of your head, a bad headache, irritated eyes, body quivers, and extreme tiredness, these symptoms could be due to stress, lack of sleep, or an underlying medical issue. It's important to stay hydrated, take breaks from devices, and spend time outdoors. If the symptoms persist, talk to a healthcare provider for proper guidance.

Your conditions, Polio Residual Paralysis and cerebral vascular accident (stroke) would generally be categorized as "Multiple Disabilities" rather than "Locomotor Disability." Multiple Disabilities involve coexisting impairments in different body systems, while Locomotor Disability typically refers to issues related to mobility. It's important to consult a medical professional for accurate classification.