After running the R.F.L 3 wk ago & a park run shortly after , my calves where suddenly very sore & my legs felt like lead . I posted that I was giving up running , but I can't ! That's the top & bottom of it . So after two & a half week of no running & legs still feeling like lead but no soreness . I have just run a very steady 5k . So pleased I managed it because I had my doubts . It's part of my life now & I know there's no way I can give it up . Yes I'm well & truly addicted .