What could be causing nonpainful muscle quivering in left calf?

[calliesmom]

For about the last two weeks, I have had a sensation in my lower left leg or calf (inside of leg) of a muscle quivering for a few seconds and then stopping for about five seconds and then quivering again.  It is not at all painful, but is pretty much constant, although  only notice it when I am sitting still or lying down.  I am concerned that it could be a symptom of something serious.  I am 75, active, weight 112 lbs. and am 5' 3 1/2".  Please let me know if this is anything to be concerned about.

[calliesmom]

Thank you so much for your helpful reply.  I have been trying to drink more water, because I am not much of a water-drinker.  I do take Vit. B12, partly because I am a vegetarian.  The quivering does not really bother me much; it's just that I don't want to neglect it in case it is an indication of something more serious.  What is ORS?  

I have been doing stretching exercises every day on the recommendation of the physical therapists I went to as a result of hip problems in that leg (the one with the quivering).  I developed the hip pain after wearing a boot after having foot surgery.  I am wondering if I should maybe only do the exercises every other day.  The PT said I have an "unstable pelvis."

Again, thank you for your help.

Marlene

[maddiehoward]

Sounds like a circulatory problem or maybe some sort of a cramp, you should probably go and see a doctor.