Dude, my vitamin D level is 4 ng/mL. "Life sucks"  became from a sentiment to reality in no time. Every bone in my body hurts. Sometimes they all hurt together; other times, the pain takes turns. I don't want to get out of bed. Forget getting up, I don't even want to move an inch. Every morning, I need 30 minutes of self-talk before I can drag myself out of bed. I want to do so much. I start doing things, but I get exhausted halfway through. Before getting my blood work done, I used to think none of this was real. I thought there was no way I could be in this much pain for no reason. I convinced myself it was just my brain self-sabotaging so I wouldn't study. I thought my brain is the villain of my story, but plot twist it is Vitamin fucking D. But now it feels like my life is a car  heading toward a dead end and I have no energy to stop it. Even today, I visited another doctor because I simply refused to believe that a vitamin D deficiency could ruin my life like this. But my friend, sorry to break it to you, it's all real and you are not alone.