2 weeks ago I lost conciousness and had difficulty breathing. After the paramedics came I regained conciousness but had a persistant severe headache/neck ache and felt lighteaded and dizzy. The released me from the hospital and told me to see a primary care physician. Last thursday it happened again without losing conciousness. The headache has not gone away. I went back to the ER where they ran a Cat Scan, Spinal Tap and blood work and still don't know what is wrong. They told me to make an appointment with a neurologist. For the past several hours I have been having mild chest pain on my left side and I still have a headache. I don't want to go to the emergency room to wait and find out that they don't know what is wrong. Do you have any suggestions?

Optional Information:
Male , Age: 26

Already Tried:
Emergency room - twice, Spoke with a registered nurse