So I used to get stress headaches in the back of my head. That went away for about 6 months. Now it is back and worse. I am not sure if it is stress heachache or not. Well now the pain is in the back of my head going down into my upper back. It makes it hard to see sometimes. The pain makes makes my left arm go numb all the time and sometimes makes it hurt. I do not have health insuarance so theres no way I can go to the doctor. Can I get some help?