About 3 months ago, I suffered a strange attack of sorts. I was just sitting down with friends and all of a sudden I felt really weird. At first it started sort of like an anxiety attack but then turned ugly. I felt lightheaded, got really sweaty, a little bit of nausea. It kept getting worse and worse, after a few minutes of building I got a clammy pins and needles feeling over my whole body, super super intense, worse than when a limb falls asleep. Then I lost my vision and was on the verge of passing out. This lasted about 5 more minutes and then everything slowly started getting better. Went to the ER but they didnt really offer much help, did some blood test and monitored my heart but said it looked fine. Since then I have had a constant mild headache, but its not a normal headache, its just in certain areas of my brain. It is hard to describe, sort of like a dull pressure with spikes of stabbing pain every now and then. It has been months and it is still there and it really affects my sleep, because it is worse at night and causes me anxiety which then won't let me sleep. I just get really scared that it is something serious. Last night and currently it has been worse than usual, I would love to get an MRI but I have no insurance and no job. I might go to the doctor later, which would be the third time since this all started.