pseudotumor cerebri
"I was experiencing blurred vision, fatigue, loss of appetite, lack of concentration and an increased amount of severe headaches. After being checked for everything under the sun in blood work I was told I was fine. About a month later the headaches and the memory and concentration issues came along with more asthma attacks. My neurologist sent me for MRI, MRA and EEG nothing. He then sent me for a spinal tap which revealed I had pressure in my head double the normal.  This happened on Wednesday April 21st, 2010 (last week). I received a phone call from my neurologist who said I needed to start taking the medication immediately. I have had no appetite, consistent nausea, and I throw up on a regular basis. So I deal with it or have a shunt."