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Thanks for contacting with your health concern.
1. Although lipitor [atorvastatin] does cause
muscle pain, the phenomenon is poorly understood and may cause either muscle pain-fatigue or weakness, [it might be the reason]
PS. although muscle pain could be caused by the drug, it might be caused by something else, also some people are more likely to develop side effects from statins, including muscle pain, i.e. those having following risk factors:
. smaller body mass, impaired kidney/liver function, age above 60 years, diabetes. [so check the values]
2. get an appointment or
second opinion with an Orthopedic surgeon regarding your symptom of sore ankle as it could be from stress fracture/sprain and he may exclude simultaneously:
nerve damage [neuropathy], high uric acid, or any poor circulation to the foot [any peripheral vascular disease/diabetes]
PS. It is important to consult with Orthopedic surgeon/Podiatrist to prevent further or long-term damage since failure to do so can lead to
disability,
paralysis, permanent symptoms of pain and numbness.