I hit my ankle on a wooden bed frame extremely hard about 3 weeks ago. It throbbed for a couple of hours after and has continued to be sensitive to touch or pressure since then. It took about 5 days for the bruising to fully show and it was spread around my ankle pat the point of impact. And there's been a lump on the bone ever since. It's still slightly swollen. Is it something that I should get xrayed?