Play it safe. You've done the training, any additional running you do now won't make you any fitter for the marathon. In your shoes I'd probably try a short jog a few days out to reassure myself (hopefully) that it's cleared up.
You want to get to the start line in the best shape possible and that means free of niggling injuries ideally.
KD - My Champs qualification dates back to a 2:41 in 2013 but I didn't get much consistent training in last year, so this campaign felt a bit like starting from scratch. My masterplan is for a sub-2:45 this autumn to secure another Champs start then target a PB next year.
JCT1 - Congratulations. What does that consist of and how much does marathon training help?
I'm sure it's poor etiquette from a Jonny Seldom Post to crowbar myself into the list but I couldn't resist. My pre marathon routine always includes much checking of this thread! I'll post properly later.