Same here, did the EEG three times. The output graph was analyzed by different doctors, one who stated "epileptic tendencies" whereas the other stated "no epileptic tendencies".. I was accepted eventually. Have never had any epilepsy or fits in the past.
Yes, the final EEG I did was under sleep deprivation. The doctors said they could get more distinct readings in that case. But it also seems the analysis made by different doctors may vary.