My grandson experienced this early in the morning. Although his eyes were open, he was unaware of what was happening. This seizure lasted longer than 5 minutes. The fluids sounded like they were building up despite him lying on his side so an ambulance was called. Two more seizures followed involving muscles spasms and a gran mal at the hospital. I am totally lost on how or what caused these seizures... His last seizure was in January..any thoughts on any of this would be sincerely appreciated.