franny - 18 miles after work? No wonder you found it hard!
I am ok, but really I don't think I have done enough running to get round a marathon without a lot of pain! And I think it might be better just to leave Manchester and not risk hurting myself. My knee has been getting niggly again - I did 10 miles on Sunday and couldn't swim breaststroke in the evening because of a sore knee. I don't want to go through all that again!