I think we've all experienced it, Norcal. So, welcome! Congrats on kicking some bad habits, and getting back into shape.

It's not just the "being like 17 again" by itself. It's that sense of freedom and exhilaration, that comes from riding. A warm summer evening, moving along, and the only sound
is the sound of the tires on the pavement. Yes, kind of like that.