Year ago we used the term manic depression. We don't use that any more, and use the term bipolar depression. The difference is that we were miss diagnosing people because we were assuming that they had to have a manic phase. One you take out the idea of mania and look at the distinct differences and shifts in mood that a person goes through and notice that they follow a pattern of depression, non depression, it can be diagnosed as bi-polar disorder. The only problem in diagnosing bi-polar disorder is that we typically only go to see the Dr when we feel bad, so they only see the depression. We have to talk about the other stage to them, and try to track when switches occur to accurately diagnose.
So to answer your question, yes, thousands of people go through that. You are not alone. Please talk to a professional about it and try to accurately assist your medical professional with helping you because no one deserves to feel that way - ever.

This is something that I experience at times. I see a psychiatrist for depression and anxiety. I take medication. When whatever triggers me into a deeper depression like you have described, my psychiatrist refers me to a therapist who I will see until I start to feel better again. Talk to your doctor and they may make the same recommendation and they may consider medication.

Depression is a cycler. It will come and go. It will jump out at you when least expected. A song, a happening, a thought can do what we call "triggering". It causes you to relapse again. Don't get discouraged. there are a lot of different medications out there that can help you as well as therapists. I have been blessed to the point that my depression is not near what it used to be. I have learned to deal with the triggers and see the "red flags" and "signs" before the depression period tries to cycle again. I sincerely hope you find the right treatment so you can deal with this better.

Thank you so much for sharing your feelings. Have you received a diagnosis of depression? You are not alone. I think more people probably suffer with depression off and on throughout their lives and don’t want to admit it. Have you talked to someone you can trust such as a counselor, pastor or clergy? Help is available you just have to seek it. Don’t give up. I came across a website that may be helpful to you (see the link below). There is information for you to download and you can look for a therapist if you feel you want to speak to a professional. You’re already speaking to us here on this forum why not take it to the next level and speak to someone who can really help you navigate these struggles. Better days are ahead.

Depression | Anxiety and Depression Association of America, ADAA