Psychosomatic medicine is an interdisciplinary medical field studying the relationships of social, psychological, and behavioral factors on bodily processes and well-being in humans and animals. A illness that has physical symptoms, but has the mind and emotions as its origin is called a psychosomatic illness. Although you may be told that it’s “all in your head”, these illnesses are not imaginary. The aches and pains are very real, but 
because your doctor is looking for an actual physical cause, they are very tricky to diagnose and treat. The key is to look for a source of stress in the person’s life that the person is not coping with. By treating the underlying stress and depression, it may be possible to heal the physical problems as well.
The seven most common causes of psychosomatic illnesses are. Conflict (conflict between what we want to do and feel we ought to do) Organ Language (use of language such as pain in the butt) Motivation (e.g.; creating illness to avoid public speaking) Past Experience (an event, remembered or not, which immediately or later, creates a symptom) Identification (e.g.; smoking now because long ago smoked with mom and enjoyed her company) Self-Punishment (from real or imagined guilt) Suggestion (at a vulnerable time an idea is accepted by the subconscious as correct)
It is possible to have more than one cause connected to a symptom.