Forgot where I was

[megan140843]

I am a 26 year old woman and was sitting at the table in our lunchroom waiting for my shift to start. I stood up to stretch and suddenly my brain went fuzzy, my vision blurred, and for a second I was convinced that I was in my room. It passed but my balance was still a little off and my brain felt like it was too big for my skull. I was also nauseous. I didn't even last an hour at work before having to leave.  
It's been several hours and my head still hurts (it stopped hurting as much for  bit but I think that was because of the pain killers I took) and my balance is still a little on the shaky side.
What happened to me? I only felt something similar once when I fainted when I was 14. I'm not taking any new meds and the meds I am on I've been on for years. Nothing in my life has changed or happened for this to occur.

[caregiver222]

You should have headed for an emergency room. You need an in-person  neurological exam and an MRI as of yesterday. The nausea suggests cardiac ischemia, but the etiology is unclear. This could have been something as simple as feinting from dehydration or it could involve a structural issue within the brain. It is impossible to even make a guess on an internet comment board. Make this a priority.