Wow, sorry to hear your story. I don't understand why they are calling these seizures psychogenic? Is it because all of your tests are normal? All of my tests are normal, they have been for 9 years, in the beginning they thought I didn't need meds either. Then I got seizures again and they put me on meds.
I'm not a doctor, so I can't say what sort of disorder you have or anything. But it seems like you have generalized tonic clonic. If you had an aura it would be focal (or partial) tonic clonic. At least this is what my doctor said to me.
I would get a second opinion, at a completely different hospital that has an epilepsy clinic. Cleveland Clinic, Johns Hopkins, and Mayo clinic are all a few hospitals that offer those types of services.
Keep us posted!