Yep.
Totally get this and the same thing happened to me a few weeks ago.
I was listening to songs from the 80's and 90's and the songs I grew up with as a kid and as a young adult who went out with friends and went clubbing on weekends.
The rush of nostalgia was perfect and gave me goosebumps and some songs even reduced me to tears.
I listened to track, after track, each one of them holding their own memory or a time in my life when life was simple.
I closed my eyes and I pictured everything from being a kid in my old house growing up. My parents, my grandparents (all of who are gone now) and things and times from my childhood. I thought about school and my schoolfriends. Then listening to the 90's stuff I was transported back to being a teen and my best mates, my boyfriends and those days learning to drive and going out to clubs and dancing the night away until the early hours.
I loved it but then too began to feel a little sad.
I think its sad because those times are gone and we can never get them back. My parents are gone, my old family house now occupied by another. Friends I have lost touch with and an era that was special and times we can never relive.
You don't realise when you are in the moment and living those times how special they are.
But then I realise that this is the same for all times of my life. I also yearn for the days when my children were small and the special time that was.
I also look back on the times my parents were alive and how I loved to visit with the kids. The birthdays, the big family Christmas Day with two tired children.
Life changes and things change so its only natural to feel a certain amount of sadness that things are no longer the way that they used to be.
Maybe one day I will look back at this stage, that I am currently in now, with the same nostalgia.
A reminder, surely, to cherish each experience and each stage and to try and appreciate the here and now.