thank you for your query,
you may have sustained minor injury
to your thigh.hence the symptoms may not be showing yet.
it can be a muscle sprain
or pull,or just minor catch
you can start with
1.applying hot compress to the area,and also muscle relaxant
creams to the affected area.
3.avoid exercise like jogging etc till the area recovers
you should be up and about within a week
wishing you good health