Well, having injured my knee during my week 3 run 1 yesterday looks like I'll never get the GRADUATE badge. I've had torn cartilages in both knees operated on in the past, a GP has told me today that it's very likely I've torn my left cartilage again and that I should NOT run as exercise. I am beyond gutted having found something that was so invigorating after nearly 48 years of not exercising, enjoying it hugely and feeling amazing. I have really appreciated the support everyone has given on here over the short time I've been running and will definitely continue reading about everyones' progress on the couch to 5k with much envy!
Good Luck to all of you.