Yesterday, I was jumping and had headphones in and when I landed, i had immediate pain right under my right lateral malleolus, everyone around me said that when I landed there was a very loud snapping sound, it was sore for a few minutes, bruised slightly, but like 30 minutes later, I was running and the pain in the same spot came back but worse and I fell to the ground a certain way to where I wouldn t injury myself further, just curious about what might be going on.