I really want to do a vitamin testing on myself. I’ve had the general blood work a few years ago, I don’t remember what they checked exactly but it was just a call from my doctor’s office said saying all back normal. I don’t know if the office I go to does specific vitamin testing. Or I’ve also seen vitamin testing kits online, but I don’t know how accurate those are. I say this because I’m thinking I might be low on vitamin d, just by things I’ve been experiencing and feeling and what I’ve researched, but I just want to make sure before I take anything. Any recommendations?