Recovery Day

I've really been training hard for the past several months. I've been working out six days a week, between walking and running. Today I was feeling a bit tired, so I decided to take a recovery day. After some guilt, I was able to get some much needed rest. Now I feel rested and ready to go at it. I have to decide if I should stick with my rest day, or go running after my dinner settles. Do any of you ever wrestle with this decision? I keep thinking that I should stick to it, so I can have a really great swim workout tomorrow. Decisions...decisions!