I'm feeling a bit grumbly about resting too.
Overdid it last week - I was perfectly capable of running the total of 22 miles I ran last week, but shouldn't really have done so given the smaller mileages I'd been notching up in previous weeks, and as a result my knees were still niggling even yesterday from my long run on Sunday.
I'm also in super-busy time at work at the moment, so basically doing a lot of rushing around and working extra hours, as well as walking to/from work. I know ultimately I shouldn't feel bad about a little less exercise when I haven't got so much free time (I'ver told a colleague of mine not to get hung up about this - should follow my own advice!), but in other ways I could kick myself for not knowing when to step back, particularly as I was so chuffed with my running last week.
Still, will go out running tonight - three days' rest is more than enough (when I'm not actually properly injured) and I need the running to clear my head and bring me back to sanity.
To all those injured peeps - best of luck with your recovery.