As far as my training schedule goes, Mondays are a day of rest. In general, the more exercise you can get, the better, but your muscles do need a break sometimes in order to give them time to repair and rebuild muscles. You can also get injured if you do too much.
However, as I was sitting here on my bed working, I had an odd thought : I wanted to go work out. It keeps running through my mind that it sure would be nice to go jump on the treadmill and do some miles.
I am just amused right now. I am taking the day off still, since I have a lot of miles ahead of me this week. Tomorrow I will be doing 3 miles and doing some strength work. It's still just a weird (in a wonderful way) that I am actually anxious to go exercise again. I'm sure I won't always feel like this, but it's a strange new experience.
Have you gotten to this point yet? Do you WANT to go exercise? What helped you get there?