Calcifediol is just a way to rapidly increase the blood levels of Vitamin D in an obvious crisis situation. Going outside, and/or supplementing Vitamin D from exogenous sources takes many days to have an effect.
Talk to your doctor, but start now. Your downside risk is fairly minimal. It is estimated that 40% of more of the US population is deficient in Vitamin D.
Talk to your doctor, but start now. Your downside risk is fairly minimal. It is estimated that 40% of more of the US population is deficient in Vitamin D.