Depression
Your mood and ability to function may be affected by the medical illness known as depression. Feeling depressed can entail sadness, anxiety, or hopelessness. Additionally, the condition may make it difficult to think, remember, eat, and sleep. If you have a depression, you may respond to certain things and situations with fear and dread.
You must experience these feelings on a daily basis for at least two weeks in order to be diagnosed with severe depressive disorder (clinical depression), which also includes other symptoms such trouble sleeping, a lack of interest in activities, or changes in eating. Depression may worsen and last longer if left untreated. In extreme circumstances, it may result in death or self-harm.