Prior to randomization, statin medication will be changed from Simvastatin to Atorvastatin and patients will be followed up by telephone at Week 1 for tolerability of the new statin medication. When a patient is intolerant to a particular statin, it is the standard of care to attempt another statin medication. Typically, many choose atorvastatin since a lower dose of the drug can be used to obtain the same target LDL/HDL, and lower doses reduce the risk of toxicity. This change in medication would be preformed regardless of the research protocol. Since the statin will be switched to a lower dose, it is possible that it will be a confounding factor, however, even the placebo group will be switched to the same alternate statin, reducing the differences between the two groups. In addition, Atorvastatin is also metabolized by the CYP3A4 enzyme, and because the presumed mechanism of association between vitamin D deficiency and statin-induced myopathic pain pivots on this enzyme, the investigators wanted to choose a statin that continues to utilize this enzyme. But, for reasons stated above, Atorvastatin has less myopathic symptoms due to lower doses used.