I graduated couch to 5k on Christmas Eve and then had a lazy couple of weeks. Since then I’ve been working my stamina up again and was happily running for 30 minutes at a slowish pace (11 minutes 20 sec miles) I am planning to get to 5k 3 times a week by the end of February. However, this morning was a nightmare! For the first time ever, I had to stop and walk after 15 minutes. I feel so disappointed and frustrated. I think perhaps, I went out a bit quicker than I should. Runkeeper said 10 minutes 40 secs for the first 5 minutes perhaps that was a bit too fast. Also I started dieting this week do wonder if nutrition is playing a part. This setback has knocked my confidence for six. Shall I go back to shorter runs or slower or both? Anyone experienced anything similar? Sorry for the essay!