I fell and injured my knees and ankle about 6 months ago. The ankle has healed, the knees have not. I'm not sure if this is related to my current problem or not...
The last few days I've been walking a lot, which caused my shins to start hurting. I just noticed my ankle has a big dent in it...looks like a minor bruise, but if I run my hand over it it's more like a bite out of an apple. It doesn't hurt at all.
What the heck could this be?

I don't even know what words to search for to look up possible problems...