30 Min seizure (severe symptoms)

So last night at chipotle I had a seizure, the worst i’ve ever had. It lasted 3 minutes and it took the ems workers two doses of versed to stop it and they almost intubated me. I’ve had seizures before, but NEVER like this. I got diagnosed with FND in June, and I feel I got misdiagnosed. I looked it up and versed doesn’t stop a seizure if it’s psychogenic. They did a quick 20 min EEG in the ER and it came back normal and my bloodwork came back “normal” but some things were very elevated. I feel frustrated because the doctors seem to think i’m faking it but it’s very real. Should I get a second opinion, a new doctor? This just doesn’t seem like FND to me. I’ve gotten on an ssri and did therapy and such and it’s made no difference. Feeling so lost