What Causes Intermittent Seizures, Convolutions And Headache?

My husband-22 started having random seizures. Has seen a neurologist who said his CT scan and eeg are fine. Right before the seizure he gets really hot. He will pass out eyes roll back and convolutions. After he comes to he can get really angry and not remember it, then complains of lower chest pain and a headache. He hasn’t had any falls or hit on the head but tonight started coughing up blood. I’m at an end because every time we go into the er they automatically think drugs until the screens come back normal. The neurologist doesn’t want to start meds even though we’ve had 20+ seizures! What do I do??