it never hurts except when i run. i start out walking and then when i start to run my achilles feels real tight. after about 2 miles my achilles hurts. im thinking im not stretching it right before my run. if i start walking during my run it doesn't hurt. it's only when i run. i wear vff shoes (vibram five finger) and they make it so that my feet don't hurt when i run. before i got them my arches would hurt when i ran in regular running shoes. any help or advice with my achilles situation would be greatly appreciated. thanks!!