Ok.. I am experiencing this. I had my blood work done and my Vitamin D numbers were severe. I would do blood work to see what his numbers look like. I just got diagnosed with osteoarthritis which all ties in. The only thing with my heart I noticed, very poor circulation and freezing hands and feet. My toes were black on the tips. But… been on D3 and K2 supplements and pain stopped in hands and feet. ♥️