I have a pain (twinge) in the leg, seeming to originate in my hip/buttocks region (left), somewhat nagging like a toothache, affecting a point below my left knee, front rather than back, though calf also affected (referred?), and also ankle region, and includes the foot. Might it be sciatica? Not too intense, but uncomfortable, and comes and goes in a throbbing way. First aware of it in bed when I awoke.