My son is 3 and he has been diagnosed with seizure disorder. It isn't epilepsy that they can find. He has done all the tests including an MRI of the brain, EEG, CATSCAN and blood tests to prove that there is no masses or such on the brain. My son has seizures still and my question is this: My son's neurologist told us that during a seizure, the blood pressure will drop and the pulse will increase to about 140bpm. This doesn't happen with our son. His blood pressure stays the same and his pulse raises, but only slightly. What does happen is that his blood saturation levels go way down into the low 80s. Is this normal? Could this mean there is something else causing the seizures such as a malfunction of the lungs? This scares me for many reasons, the biggest one is the history I have in my family of lung diseases. Anyhow, I know this is probably a stupid question but I need an answer. (the info at the top is my son's not mine)