Today morning my foot was slipped from steps while going down to stairs.. within that fraction of  time I had a servere pain after some time my foot is normal and I didn't felt any noticeable pain.. I walked and did some work without any pain  on my foot...after some time I have  lyed on my bed for sometime.. from afternoon It was becoming worse ..i can't explain the pain ...without walking and even giving rest also my foot is paining severely I can't even keep the leg on the floor and stand properly please help me doctor to cure this as soon as possible