Desire or Addiction?

One night not too long ago, I was working during the night, as I tend to do for my night job, and I noticed a few guys in a park playing frisbee. Man, was I jealous of them. I realized that I haven't played a sport in months and darn do I miss it. I have started to get really antsy to play something again. So antsy that I am wondering if I am sort of addicted. It feels like I need another 'hit' of sports. I don't know if its a bad thing or what. Maybe I just think it could be bad cause I use the word 'addicted' Hope its not a bad thing.