XC Sickness

It's sad. Nobody warned me. I used to be happy just flying around
near the airport. I didn't have a truck. I didn't have a "crew", I
always knew where I was going to land.
They don't tell you that you won't be happy just flying around near
the airport after you've flown a little XC.
Does this ease off a bit with time? I'm only half kidding about the
above. Last week I flew my best long distance flight ever, and I was
no-kidding giddy about it for DAYS. Fine, but now I seem to be
obsessed with getting a LONGER flight in. Am I just sick or does it
affect others the same way?

Thx
Jim