I've had a headache for nine months straight.

I'm not even sure what group to post this in. I am simply hoping there is someone here who may have the knowledge to help me.

My name is Taylor. I am a twenty year old female, from Colorado. Mostly healthy, I've never had any serious medical concerns until recently. For the last nine months(ten months officially on the 15th) I have been dealing with a headache. I mean a constant, hadn't gone away at all, headache. It started on July 15th 2013. I have suffered from headaches my whole life so I thought nothing of it. After a few weeks, and it still hadn't stopped, it became more concerning to me. Especially when I started to experience other symptoms. I was becoming violently ill, often vomiting up all of my food. I was down to two,sometimes only one, meal a day. Since this started I have lost a significant amount of weight and continue to. My hands,arms,feet, and legs began going numb. I was constantly dizzy and often passing out. I have had a few episodes where my left eye would go dark, I could see out of my right but not the left. On September 4th 2013 my arms began hurting, with shooting pains in both arms. I was shaking and dizzy, so I went in to the ER. They did a CT scan and found that I had three small calcified spots, Meningioma's. I was told to visit a neurologist to check into these. I set up an appointment and long story short, they didn't appear to be harming me. The doctors don't think they're the cause of my symptoms. I began taking a series of tests. They did blood tests and discovered that I have Rocky Mountain Spotted fever. I was given antibiotics, but the symptoms persisted so that doesn't seem to be the cause either. I have had an MRI to look for signs of Multiple Sclerosis. That came back fine with no signs of it, nor signs of anything else. I was tested for Lyme Disease and that came back negative. I've had an EEG to see if I am having seizures, that too came back fine. My doctors seem to have run out of options and don't know what to do next. I am hoping and praying someone might have heard of, or experienced something similar. I just want answers, and to be pain free again. I would greatly appreciate any thoughts, comments, ect that might help me figure this out. Thanks so much for reading this long post!!