I have heard of many kind of depresssions. Depression is nothing but not letting our feelings outspoken . If we dont why it is said that the feelings stay inside and affect. Is it a solid particle like food not getting digested as we eat and urine when stays inside not letting out can cause serious problems. But feelings are intangible . Why is it going to affect us if we dont express it
When discussing depression, it is sometimes necessary to distinguish between clinical depression (major depressive disorder, seasonal affective disorder, etc.) and everyday depression (feeling "blue", sad).
The word depression gets thrown around a lot. We use it to describe feeling temporarily sad, which could indeed be the result of not sharing our feelings as you suggest. However, when we talk about depression as a disorder, there are many factors that go into a diagnosis. In addition to a depressed mood, the disorder includes persistent, debilitating sleep disturbances, changes in appetite, fatigue, and anhedonia (the inability to enjoy the things that once made us happy).
It's true that it can be helpful to share our feelings, and that everyone feels depressed now and then, but a diagnosis of depression is a more nuanced concept, and it usually requires a combination of therapy and medication in order to resolve.