Just over a year ago I had numbness in my pinkie in my right hand and a feeling of weakness,it turned out I had compression in the right cubital tunnel,pressure on the nerve was causing the numbness and if not treated would cause weakness of the hand.I had a decompression operation on my elbow which was merely stopping it becoming worse and not necessarily stopping the numbness,which has turned out to be true.So I would act now and get it medically checked out as it may be something to nip in the bud!