Ok Folks try this one. My old shoes (NB 712 and 636) no problem. Any new shoes (NB 854, 3000, Suconey can't remember the number, nike, asics...) with or without special indsoles and left foot numb and painful after 20 minutes. PS I strecht before running The problem is the old sgoes are falling apart and the gurus say to change them every 6 months and these are pushing 24. My GP said to just keep wearing the new shoes that hurt the least until they mold to my foot. I'll let you know if it works.