Haematoma to shin - advice needed?

could be an injury to the lateral / medial malleolus ( the bones on the sides of your foot or the "ankle bones") possibly, if it was that you would have swelling above and below the ankle bones. Another possiblity is an injury to the navicular or talus bones, if you have a talus injury, then your ankle will swell and the shin takes more stress than usual. Try another doctor ( preferably sports med) and get an m.r.I or something.