Yes, there is a recurring depression - you may have clinical depression which is where the "chemicals" and hormones in the brain go haywire and to correct that, you need an antidepressant to levels things out. Otherwise you'll liive with crushing depression the rest of your life.
My friend it's time to see a therapist to see if that's exactly what's going on. I wouldn't doubt that is the problem but I may be wrong. At any rate you still need to see the therapist. You shouldn't have to live like this.
Ive been depressed since I was a small child and I finally got treatment in my 20's. I've been on antidepressants for probably about 40 years. I don't know how i'd make it if I wasn't on antidepressants -- I'd fall into the pits of hell.
i hope you'll talk to your doctor about getting a referral to a good therapist and do it soon. .The sooner you're on an antidressant the better.
God bless and please take care. Hugs, Lee