Welcome to HealthcareMagic forum.
From what I understand you been suffering with symptoms of multiple sclerosis
(MS) involving the lower limbs
along with difficulties during bowel movement in the back ground of chronic obstructive pulmonary disease
If my assumptions are right, I would like to know if you have been diagnosed to have multiple sclerosis. Besides this, MS symptoms are not related to the bowel disturbances you have.
Irrespective of the neurological symptoms, bowel irregularities can be easily corrected with dietary changes - plenty of fluid and fibre consumption with or without stool softeners. Laxatives may be used occasionally when symptoms are severe.
Hope this answers your query.