this morning i woke up in intense pain. i felt like someone was forcing a poker into the underside of my left calf
It sounds like what I get some times, which is just nasty cramp thingies when I stretch or move (most frequently, when I wake up, or am woken up by), generally caused by being fairly dehydrated, and/or a combination of not having enough Vitamin E, or Calcium. Taking the VitE has helped alot. Past that, just rub it out. Tiger Balm (or whatever) works well. Keep it warm-ish, if you can.
That's my .02, first thing in the morning.