Yes, you will find as you go through life it comes in phases. It can be incredibly intense, poignant and melancholy ... as I have experienced myself.
The Welsh have a wonderful word - Hiraeth - which is very difficult to translate into English but is usually taken to mean homesickness or longing for home but it's actually more than that. It also means a bittersweet memory of a time, era, an intense form of longing, nostalgia etc for something that is gone and can never return. The nearest equivalent is a Portuguese word 'Saudade'.
I've found that as I go through life I have these periods of this intense nostalgia - and it usually precedes or follows a life transition so going from youth to middle age, middle age to old age, approaching menopause, other life events like children growing and moving on, parents passing and so on.
You find yourself thinking of things you haven't thought about in years, things on TV or in real life trigger a memory of a place, person, time and you are back there. It's quite difficult to stay in the present some times when you are going through these intensely nostalgic phases.
My experience is that they do pass ... but while you are experiencing it it can be a very emotional and poignant time and of course it's completely unique to you.