Prior to my last three strong night seizures I was aware of a completely new type of feeling that occurred shortly before bed (about 4-5 hours before the seizure). I was dizzy, and it felt like my eyes were trying to sink into my head. It was only in hindsight that I was able to put things together, because this isn't a usual warning for me. Probably three times isn't enough to identify it as an aura, but it has me wondering if anyone else has ever developed a new type of aura.