I feel it too! The guilt when I eat a delicious meal and don't go for a ride. Not having run more than 10km in a month. Having a bad time last week on my sprint distance. Its a very weird feeling... because my mind is yelling to go train, but my body is saying "keep your butt on the sofa!"

My recommendation is to have no plan as your training plan for just a little bit longer. For instance, if running is tearing up your hamstring, maybe make a plan date to start running again. That way you can work at healing the injuries that Ironman gives (I know I just haven't discovered them all yet!) My training last year destroyed my left IT Band, so know that the season is done for me, I'm not going to run at all until October, just to let it heal. I feel lazy, yes. I'm bored, yes. But I know if I go swim, I'll get 15 laps and need a nap.

Remember that training is (supposed to be) the fun part. Think of other activities that would help maintain your fitness levels without knocking you out.