I noticed this a few months ago, I'd extend my leg, flex my calf and staighten out my foot, and curl my toes, then when id try to extend them back to normalm my calf would hurt a lot and my toes would be stuck. then i;d have to move then by hand. to get that back to normal.. i think its my tendon im not sure but im freaked out. And Today, I bent my wrist towards me, and madea fist, then when i would go to bring it back, my pinky would get stuck and id have to move. and i think thats with my tendon too. its really wierd. anyone know wtf this is... lol