I have low vitamin D. Wait let me back up. In January I began feeling fatigued, anxious, weak and having tachycardia. I was put on Metoprolol in February. In March my brother passed away suddenly from an allergic reaction to hair color for his beard. I've been a mess since. I now feel like I'm numb in my stomach, my face, my head and this happens in my sleep. It feels like I'm not breathing through my nose but I know I am. Im tired but I can't sleep for fear of what happens when I try. I've been tested for apnea and I don't have it. I'm sad because I'm sick. Doctors say I'm sick because I'm sad. Please help me.