I just woke up with horrible aching in my lower left leg. Aching gone now, but for about 10 minutes could not move leg without ache. It woke me up out of a sound sleep. Never had this happen before... except for leg cramps from time to time. Fairly active, on feet 8 hours a day on concrete floor. Mow lawn, and help husband with various home remodeling (exterior) jobs. No ache or pain at this time. Now ten minutes past episode.