How are you? If there was no trauma, this could be due to musculoskeletal causes, an in
fection or underlyin
g problem. Try to rest and avoid runnin
g or any heavy activity at this poin
t. To determin
e the underlyin
g cause, have this evaluated further by your doctor for proper management. Your medical history and some tests like x-ray will help. Take care and do keep us posted.