Phew, running uphill is hard work!! They're not really even hills, just inclines, but I'm just running up them very, very slowly to keep going... and it's great coming down the hill at the end of course!
Also figured out one of the reasons I'm enjoying this so much. It's the sense of liberation, as usually when I go anywhere I have two small children in tow.
Have a 'niggle' in my knee. It's not painful, and it's not an ache, just a feeling. Do these things tend to develop over time into an injury?