How Can One Manage Seizures Which Either Look Like Epileptic Or Non-epileptic Attacks?

I First had an EEG Between 1982-1983 age 16, I was told i had epilepsy and was under the care of Dr SXXXX until about 1998 were i was placed under the care of Dr CXXXX. During the time under the care of Dr SXXXX i never had any further tests or was not offered any further tests/investigations despite being on medication. During the time under Dr CXXXX Care the last twelve years i never had any further tests or was not offered any further tests/investigations. During this time i have only ever been asked to think about a place in the XXXX Centre, a Neural Implant and brain surgery. It was only recently i had a sleep deprived EEG which was on 23rd February 2011, so in the last 28 years i have never been given or offered any further tests or investigations despite the medication not working i.e.: not controlling my seizures. I last seen Dr CXXXX 6th April 2011 to go over my EEG, he stated it did not show my seizure, he also said that i may not have epilepsy i may have non-epileptic attacks and if i don t have epilepsy then the tablets wont work. should i have been given tests sooner than 28 years