try rucking for a month before trying to run again it will improve your stamina very quickly .. Use a backpack with 10 per cent of your body weight in... And go hiking ... Good luck..
Not a bad shout, I did West Highland Way and Great Glen Way in summer though so I think am on that track
Just gonna see what happens tomorrow, walked 10 miles today but thighs burning, which I never get, obviously off the run
thanks for reply