I've noticed that for the past few days my lips have started quivering late in the day. I remember after my TT a few years ago being told to watch out for lip tingling. I never had any tingling but now they are quivering. Could this be calcium related? I've had my calcium checked recently and it was fine, I get it checked with every set of labs since I was extremely low in Vitamin D. All my levels are normal now so I was just curious if this is something I should call the doc about.