The more purely physical symptoms constitute almost everything
imaginable.

1. Pains and aches of all kinds stand out prominently; headache,
backache, pains in the shoulders and arms, pains in the feet and legs,
pains that flit here and there, dull weary pains, disagreeable feelings
rather than true pains. These pains are frequently related to
disagreeable experiences and thoughts, but it is probable that fatigue
plays the principal part in evoking them.

2. Changes in the appetite, in the condition of the stomach and bowels,
are prominent. Loss of appetite is complained of, or more often a
capricious appetite, vanishing quickly, or else too easily satisfied.
The capriciousness of appetite is undoubtedly emotional, for
disagreeable emotions, such as worry, fear, vexation, have long been
known as the chief enemies of appetite.

With this change of appetite goes a host of disorders manifested by
"belching", "sour stomach", "logy feelings", etc. What is back of these
lay terms is that the tone, movement, and secreting activity of the
stomach is impaired in neurasthenia. When we consider later on the
nature of emotion, we shall find these changes to be part of the
disorder of emotion.

3. So, too, there is constipation. In how far the constipation is
primary and in how far it is secondary is a question. At any rate, once
it is established, it interferes with all the functions of the organism
by its interference with the mood.