I've been researching this a lot and I've read that taking D3 without Magnesium can do this. That is, taking the D3 might have tipped you into a Mg defficency.

I've been researching this a lot and I've read that taking D3 without Magnesium can do this. That is, taking the D3 might have tipped you into a Mg defficency. That's why D3 is taken with Mg, Ca, K and Vitamin K2. They all work together. Did the supplement you took include those, or at least Mg?