How do, i've searched the forum but couldn't find anything that answers my particular problem, so i'm gonna take my chances. I've recently developed a shin problem. When running my shins feel like they're swelling up (it's the same sensation people get when tabbing, which is cleared by flicking the toes) i know it's not shin splints because if i stop and stretch my shins it clears up, although it comes back if i continue running. It started about4 weeks ago and just came out of the blue, it was so bad i couldn't continue running. It was pretty bad for the next couple of weeks, even when doing circuit training. I rested for a few day and it hasn't given me any trouble on circuit training, so i went for a run (3.5 miles) and it wasn't painful just annoying. It doesn't hurt on tabs or when i'm walking around at work, and if i stop running it goes within 1 or 2 minutes. Has anyone experienced anything like this before? or have any tips on how to prevent this from happening? Also i have been downgraded for a few months, could it be down to the fact i haven't done much impact pt and just need to get used to running again?