Can you be homesick without ever leaving?

"I'll be half way to heaven with paradise waiting, just five miles away from where ever I am" ~Paradise
 
This is so much more complicated that I though it would be. I had yet another dream after which I could have sworn when I woke up I was on the bow of a Flying Scot. I have summer jobs that most people I know would kill for,  and don't get me wrong I love them and am immensely grateful for them, but...

...some how chlorine isn't doing if for me. I miss green water.

I remain,
Georgie