Hello doctor, I am in such a situation that I am not able to concentrate, there is allot of confusion going on in my head, back side of head seems to be stopped working or numb. I am having nux voice 200 and kali phos 6x but still I am not able to study and remember things clearly. I was having a feeling of anxiety lump in my throat which is gone but there is still a little pain at the back of my head. My thoughts process is completely devastated what to do pls help as my exams are near and I have to study. I have shifted to homeopathic medicine kali phos and aneva sativa. My mind does not feel fresh even sleeping for 10 hrs and I feel like my mind is not resting and my memory and thoughts have become non existent pls help its very difficult to live like this.