When an individual has episodes of depression and hypomania which affect the mood and behavior of the individual.  

Oakland University

MANIC EPISODES: 
Condition in where individuals have a period of elevated or irritable mood, energy is increased, racing thoughts, and extreme changes in emotions.

DEPRESSIVE EPISODES: 
Condition in where individuals have a period of low mood, loss of interest (for example in activities), changes in appetite and sleep. 

HYPOMANIA: 
Condition in where individuals have a period of elevated mood, increased energy, activity and talkativeness which is considered to be abnormal

ADHD and bipolar disorder basics 

When an individual has maniac episodes that lasts for at least a week or by maniac symptoms that are severe. 

Bipolar I disorder

When an individual has recurring hypomanic and depressive symptoms that are not intense and do not last a long time. 

Cyclothymic disorder

Mayo Clinic. Bipolar disorder. Mayo Clinic. Published February 16, 2021. https://www.mayoclinic.org/diseases-conditions/bipolar-disorder/symptoms-causes/syc-20355955

Cleveland Clinic. Bipolar Disorder (Manic-Depressive Disorder) | Cleveland Clinic. Cleveland Clinic. Published April 12, 2022. https://my.clevelandclinic.org/health/diseases/9294-bipolar-disorder

References 

Overwhelming sadness.
Low energy and fatigue.
Lack of motivation.
Feelings of hopelessness.
Loss of enjoyment of things.
Difficulty concentrating and making decisions.
Uncontrollable crying.
Irritability.
Increased need for sleep.
Insomnia or excessive sleep.
A change in appetite.
Thoughts of death or suicide (suicidal ideation).

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