What is reverse seasonal affective disorder?

There is no medical term or psychological condition known as reverse seasonal affective disorder.

Seasonal affective disorder (SAD) is a major depressive disorder in which a severe low mood is experienced at the same time of year every year. For most people with SAD, symptoms start in autumn and become worse in winter, improving in spring and summer. For these people, the condition is known as winter SAD. For a much smaller number of people with the condition, the symptoms start in spring or summer and become worse in autumn and winter. This is known as summer SAD.