I had flip flops nearly all the time when I was much younger.
Here's how mine got "fixed"...was a Magnesuim deficiency!...can google search PVC's Mag deficiency.
I found this out from Mayo Clinic Cardiologist.
If its muscle twitching...I'd look into B12 deficiency as well...check out all this on the vit/min forum here...read what Rose writes on this.
Is great stuff you find here!
Blessings, cheryl
Here's a link to my story:
http://brain.hastypastry.net/forums/...ad.php?t=10710