Tired Today

I went to the gym and intended to run a few miles; finished with 4.2 miles and 2 miles on the elliptical. My legs have been tired the past 10 days but no sharp pain in the right leg. I feel like this is not a good time to push oneself. Winter always seems like a time to relax just go with how you feel. I'm sure I will feel like running longer in a few days. I guess you should always listen to your body it's just that in the warmer weather I can usually run through it.