Well I graduated back in August and have been running constantly since and have been loving it but the cold/dark has driven me indoors to the treadmill at the gym. I have been twice now but oh how hard it is. I have to say the running is easier, no dogs to avoid, kerbs to fall off in the dark, cars to avoid, uneaven pavements.
Both times I've found myself slowing the treadmill down for no real reason before getting grumpy with myself and speeding it back up. I just find it so hard to maintain running on the spot for 30+ minutes. The treadmills at the gym come with their own inbuilt tv - brilliant I thought but how wrong I was, it's fine when walking but as soon as I run I can't focus on it and end up trying to look at the mirrow on the wall just past it.
I will stick with it, maybe somehow I'll learn to switch off my brain.
Just wanted to say how impressed I am with you guys who manage to do the C25k on a treadmill!