Possible seizure? Please help

GENERAL BACKGROUND: I was diagnosed with temporal lobe epilepsy a little more than a year ago. I was skeptical of the diagnosis, so I went to a neurologist a few months ago to get a second opinion. She says I described some things that may be temporal lobe seizures and she put me on Keppra (I'm on 1500mg a day), but she doesn't sound like she's saying it with any real certainty, so I'm still skeptical about the diagnosis. I have had three EEGs done during the year I've been trying to figure this out, the first two for about an hour and the last for about seven hours. All three EEGs came out normal, but a "complex EEG" that was run along with the first EEG said there was physiologic dysfunction in my temporal regions. QUESTION BACKGROUND: I was in the hospital elevator (orthodontist appointment) yesterday with my dad and another woman. The woman asked my dad if he knew where the "I.G. Critical Care" unit was. I am somewhat familiar with medical terms and their abbreviations, because I want to get into the medical field (infectious diseases), so I tried to figure out what she was referring to. Somehow, I concluded she was referring to "gastrointestinal," even though that's "G.I." Then I realized that couldn't be right and I never heard of any medical term with "I.G" as the abbreviation, so I asked my dad if he remembered what the woman said. And he said she said "G.I." When I got home, I saw some stuff about "trouble understanding speech and written language" in temporal lobe seizures. However, when I went to see my neurologist today, I described yesterday's experience (although, admittedly, I may not have explained it adequately because I'm generally afraid to talk about medical disorders—or anything personal) and she said she didn't think it was a seizure. At first, she said she thought it might have been a symptom caused by Keppra, but she decided against that after I told her I took my last dose around 7:00 AM and the experience happened around 2-3:00 PM. I thought that was a pretty weird experience, so the neurologist saying that wasn't a seizure makes me even more skeptical that I have a seizure disorder. My friend, on the other hand, still firmly believes that was a seizure despite what my neurologist said. QUESTION: Could this have been a seizure? The neurologist said she didn't think so. My friend said she was sure of it. Epilepsy websites said it could be one (provided we're not misinterpreting them). I said I don't know. There has been evidence that neurologists don't quite understand some aspects of temporal lobe seizures. So I ask you. Your help would be greatly appreciated, thank you.