Remembering dreams of decades ago - does anyone relate?

I'm certainly not sure how much this relates to the symptoms of schizoid personality disorder.

I notice having "flashbacks" of dreams I've had decades ago when I'm awake/conscious (and not drunk). Mostly they are neutral or positive. But it's creeping me out in some way to remember them.

Me personally, I have a very, very good memory in general. Being positive in general, this "trait" won't let me forget negative experiences either.

I used to think that this "cognitive overusage" may be a reason for my depressions.

Does anyone relate?