I'm suffering from lower back pain for over 2 weeks now. I was diagnosed with deficiency of D3(14) and
B12(175). After taking D3 injection, pain has reduced a lot, but having nausea, dizziness and weakness. Also back still feels a bit cramped and weak.
How long does it take for D3 and B12 levels go up with supplements? Any additional things we can do to improve sore back?