I have been running BF for 7 months now.
I started on pavement and slowly worked up my mileage with no major issues (just the usual blisters, tight calves, occasional ankle swelling in the first couple of months).
Back in November my mileage was around 25 miles a week. My long runs on weekends were just 10 milers. No injuries, good form and felt great.
In mid December 2010 I switched to trail running which is much more rewarding to me. I have been running trails exclusively for 3 weeks now doing about 15 miles a week.
Yesterday I decided to try a run back on pavement to train for a half-marathon I am planning to do at the end of February.
I run my usual 6 mile route on concrete and something does not feel right. No pain but my lower legs feel really tired after the run which never happened to me before.
And this is the time where I think I made a huge mistake. I do not take the usual day off and run 4 mile trail run today.
At the end of those 4 miles I get this weird pinching localized pain on my fibula right above the ankle.
I stop immediately and just walk back to the car.
The next day the pain is still there, a little swelling. Applying R.I.C.E. I do not run the next five days, I can walk just fine but the sore spot is still there, sensitive to touch. I start worrying about a stress fracture on my fibula and go to see my doctor. I get both x-rays and a bone scan done. The doc says it does not look like a stress fracture (BIG relieve) but more like a shin splint. He tells me to run just 1 mile tomorrow and slowly get back to my previous mileage.
Well, it has been 10 days now without running since the injury happened. The spot is still sensitive to touch but no real pain so I decide to run that one mile. The pain is back almost immediately.
I am basically back where I was 10 days ago, the same burning pain, I am not able to run anymore, walking with a limp and walking stairs quite hurts.
It just does not seem to be going away. I know shin splints usually happen on tibia but the burning pain I am having is just on fibula right above my ankle.
I believe it is not a stress fracture based on the bone scan results. The doc says if there is a stress fracture x-ray does not show much but on the bone scan they should definitely see an increased blood flow in that area (the bone is repairing itself) and there was nothing like that on my slides.
My plan is R.I.C.E. for a couple more days to see if things are going to improve.