Confusion, muscles refuse to obey

Definition

Relationship between Mind and Body functions: If the mind becomes weak, the body has to offer for its malfunctioning then body assumes control over the mind and vice versa.

I am carrying on just on the strength of my will. Anyone in my position could pull on.
Although I try my best to keep control over myself, the pain disturbs me too much and ultimately a stage is reached when I am unable to hold myself and cling to Someone / Medicine.
This rubric may be changed as Muscles obey the will so long as the will is strong.