I have had RSD for some four to five years now. Last summer, I had not been sleeping for months due to pain. I started having new symptoms out of the blue. I started to get dizzy feeling and almost like a "zapping" feeling in my face that traveled down my arms. My husband took me immediately to the ER where on the way I passed out & had a seizure. I was in the hospital for weeks. They determined that I wasn't having actual seizures. They called them "sudo" seizures. I would have extreme pain in my leg (where the RSD is) when I came to. I would also have fainting spells. They said they weren't "real" seizures & fainting, but they said that about my pain at first before they found the RSD, & the "seizures" didn't stop until I was put on 2 different seizure meds. As far as the fainting, I have stopped that along with the seizures. But there are a few time that I am in such extreme pain that I feel flush like I could faint. I was wondering if anyone with RSD has had any of these symptoms?