I have gone through your query regarding pain, numbness
and echo in ear, indicates that you are suffering from acute otitis media
I would like to tell you that initially you felt ear blockade due to obstruction of eustachian tube (tubular connection between ear and throat) this in turn lead to negative pressure in middle ear this is responsible for developing echo sound, this blockade and echo compel you for ear cleaning,and as you poke for cleaning probably ear drum got hurt thus numbness appeared.
Now you are advice to contact an E.N.T.specialist for thorough clinical examination to establish diagnosis and treatment.
I hope now you are clear about query, if still you have any doubt you may contact again.