My vitamin d level in the toxic range, no supplements. calcium level, 10.3, carbon dioxide critically low at 14. 31/f. possible causes?

Too few details-many: more needed for better assistance. Plasma vitamn D typically called "normal" from 30 ng/mL (bottom 2%) to 100 ng/mL (top 2%) of small sample groups. High levels long a theoretical concern yet no clinical trials have verified this valid. Plasma calcium called "normal" from 8.5-10.2 mg/dL (again 2% to 98% sample group). If one breathes more rapidly, CO2 falls; slowly, CO2 rises. http://goo.gl/Blh6rW