Suffer from guilt? Me?.....All the b***** time! Even when I go swimming instead of running, I feel guilty that I'm not running! I always have blobby weeks when I don't do any exercise and eat too much.
Trouble is, we're only human and we can't do everything. I find holding down a full-time job, organising the household chores, having time for my marriage and extended family, ensuring the cats are well cared for and finishing a part-time PhD is all quite enough on its own, without then adding the pressure of having to keep fit and run.
Running is supposed to help with stress, but I do have times when it just adds to the burden and I have to stop. That's when the guilt really sets in though.