I herniated a disc in my back 3 weeks ago which forced me to take an overdue & much needed rest. After a few days of nothing I hit the pool, doing 1-2 miles crawl. As much as it was great to be doing something, nothing beats the thrill of running up hills. Finally got back to it on Friday & again today. I suspect we all run when injured. Speak to any fell runner at a race & they will have a "niggle". Best advice I was given was "manage your injuries". Be that shortening your runs, slowing down or more rest days. It is very easy to think of yourself as bulletproof when running well & injury free, but I think it is wise to have the odd week off here & there.

Good luck Matt.