Okay, so I am here writing because stupid me missed a dose of Mirtazapine. I am now sweating, throwing up and having diarrhea. My psych told me to take 7.5 mg which is half the pill and then go to 15mg tonight. I don't know if I can make it. Waves of nausea are hitting me, and I feel awful. Feels like the stomach flu. What should I do?