Welcome to health care magic!
Bruises and pain are very common during a fall and usually last for several weeks to a month.Since You are able to walk and bend I do not think that you would be suffering from any serious injury
However a pain which radiates down the thigh might suggest a nerve
involvement.This could be secondary to injury to bone.
You may try 1)hot fomentation over the area with a hot water bag2)pain killers3)rest to your leg
I would suggest that if your pain persists without showing any sign of resolution it would be helpful to see an orthopaedic doctor who may put you thru a few simple tests to rule out any injurty to the nerve.He may also suggest an xray and other tests in case he feels its necessary.
Hope this helps!