Walter states that the thought of never feeling anything again after he dies upsets him. he is also frightened by the total isolation of death. walter is experiencing

Walter is experiencing Death anxiety  

Explanation:

In this life, there are main things that are upon to happen that is death and stress. Stress affects every individual each day on different levels. Different people have diverse levels of weight compared to others. Besides, the load can react to anxiety, as either a physiological state and at this state may seem to be more intense than expected leading to death.

Every person has his level of a cause that leads to anxiety; however, the common one is death anxiety. This is because eventually, everybody will die.

answer; the civil right act of 1964;