Thanks for writing in.
Injury over your ankle might be soft tissue injury
, ligament injury
Without X-ray, it is difficult to differentiate a fracture from others.
I suggest you to consult an orthopaedician nearby for a detailed examination. You may get the X-ray of the area affected under his/her guidance.
In the interim, ice the affected area and take anti-inflammatory drug like motrin
to reduce pain and inflammation. Avoid putting weight and rest well.
Wishing you good health.