Well, I finally got there! I have just come in from completing the last C25K run, and I feel fine!
I had been hoping to go out yesterday but the weather was a bit grim. It was not much better today, but I was determined to finish. I just ran around my local parks and did a bit down by the canal - but I managed to keep going for the whole 30 minutes, and I felt OK! After the struggle I had on Saturday I was so pleased.
Best of all, now I don't have to listen to that guy singing about flipping Julie any more!