Are you taking a multivitamin which contains high amounts of Vitamin D3 by Glades Drugs? Please be aware of the following FDA alert.
http://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm474599.htm

Consumption of this product may result in vitamin D toxicity, which may be severe and may lead to life-threatening outcomes if left untreated.