Replying to Busted up my heels: Help. Please.

Yo guys, so a week ago I was being stupid and jumped off a pretty high wall, about 15-17 feet. Immediately, I had immense pain in my heels. Ive had this type of injury before from shorting jumps, landing flat, etc. This time though, the pain in my heels went away but now when I'm in a seated position, the sides (under my ankle bones) ache a lot. I'm talking like barely being able to sit still in class from this pain. When I walk, the pain isn't there, its only when I sit.. has anyone had this symptom from bruising their feet?