Have you ever run in a marathon before?
no i never have but would love to.  i don't think i could do long distance though.
Do you run shorter distances?
If i were to run it would be a shorter distance. i am a little overweight and i don't think i could do long distance.
I used to enjoy running and actually did a marathon and a couple halfs, but I just don't enjoy it as much anymore. 
I would love to be able to start slow and work up to a longer distance. Get those feel good endorphines flowing.
I hear you.  That's what I used to love about running-- that feeling after a good run!  My body always felt so strong.  I've been doing more strength training lately to get that feeling still.
There are so many marathons each year, something around 800.