Sometimes you can strain a muscle or sprain
a ligament due to a twist or sudden stretching of muscles or ligaments. I believe there should not be any bony injury
and would suggest you to consult a physician to examine you and possibly refer you for X ray
A sprain or strain can result due to sudden pull or stretch sometimes not recognized at the time of injury but you do feel at some time later.
I would recommend you to have cold compresses and application of anti inflammatory cream or sprays along with some oral muscle relaxant
and a pain killer (NSAID
) combination. Also I would recommend you to elevate your limb and and have the limb at rest for a week or ten days so as to hasten healing.
The earlier you get your problem evaluated by a doctor through physical examination the better it would be because some conditions look very simple on reading or listening to people than actually seen by an expert.
Thanks and hope this helps