My whole ankle is swollen and i'm having sharp stabbing pains in the top of my arch no matter what i do?

Ice pack: if not better get lt xrayed you may have fractured a bone

RICE treatment.: You will need to apply an ice pack to the ankle area to try to reduce the swelling and reduce the pain. Elevate the foot higher than your heart and stay off of it. If you have to get around, use crutches. Check for bruising in the morning as it may be a sign of trauma to the area. If there is no relief after several hours, you will need to be evaluated for a soft tissue or bone problem.

Has there been: any trauma? Did you drop something on it or twist your foot? With swelling and pain out of proportion it's important to get seen right away. Go to the ED and try your best to stay off of the affected ankle until you are examined and given a correct treatment plan!

Varies: There could be multiple causes. Did you injure it? It would be wise to be seen for a specific diagnosis. Among the more common causes are traumatic injury, inflammatory process, or infectious process, even a more proximal blood clot. An exam and appropriate studies will yield the likely diagnosis and at that point appropriate treatment can be begun.