The sheer number of mental disorders makes the answer to this question impossible to answer fully. The disorder's symptoms and eventual diagnoses depends on many factors, a few of which are: age, family history(such as mothers activities while pregnant), substance exposure/ inhalation, trauma in the near or far past etc... Some very common yet vague symptoms of a mental disorder are: slowness(in comprehension as well as in physical movement), physical features(often individual suffering from the same mental illness tend to have similar features), speech impairment, etc.
There are no physical characteristics. PTSD is a mental health disorder.
feeling of shame
Because Bipolar is a mental disorder. What else would they label it
Anorexia nervosa is indeed a mental disorder.
Burning things is only a mental disorder if it is a compulsion. That is called pyromania. Very often, pyromania is a precursor to psychopathy and antisocial behaviors in general.
Delusions, hallucinations and living in a world of your own are characteristics of schizophrenia in general. We don't know that there is a particular sub-category that would fit any better.
Liberalism Is a Mental Disorder has 221 pages.
A mental disorder is defined by psychological symptoms some of which are called psychopathological phenomena.
Do you mean "mental" disorder?
An addiction disorder
According to the Diagnostic and Statistical Manual of Mental Disorders, phobias are considered to be sub-types of anxiety disorder (psychiatric disorder).
yes