Diagnoses and conditions I commonly see are:

Mood disorders such as depression or bipolar disorder
Anxiety disorders, including panic attacks, phobias/fears, for example of going out (agoraphobia), of confined spaces (claustrophobia), of being sick (emetophobia), health anxiety and others
Adult ADHD
Aspergers and other Autistic Spectrum Disorders
Obsessive-compulsive disorder (OCD)
Insomnia
Eating disorders
Psychosis and schizophrenia
Weight management and obesity
Addiction, alcoholism, drug misuse
Gambling
Relationship and interpersonal difficulties
Chronic fatigue and psychosomatic disorders