I have hurt my left ankle. it hurts when i walk on it move it or if its still. what could be wrong?

A sprain or strain: It could be a fracture (broken bone) a sprain (torn ligaments) or a strain (strecthed out ligaments). Have a physical exam by a podiatrist to make sure which one it is and follow the treatment recommendations. Sometimes, just a compressive wrap is needed, maybe a splint or a walking boot. It's tough to say exactly without an exam.

How did you: Hurt it? You did not provide enough info. I would suggest an in person exam as x-ras may be needed to help determine the problem. A hands on exam will allow the doctor to physically exam the foot, place it thru range of motion etc.