fall from a horse is a type of injury
where you can have severe trauma.
you have described your injury well.
yet few questions are unanswered.
do you have moderate/severe pain
have you any problem in movement of the affected part?
if the questions are 'yes' then you must consult a doctor.
otherwise you can wait for another 7days.
usualy slight pain,parasthesia may persist over an traumatised area.
if problem persist after that you should consult a doctor.
hope this help.