Thank you for your question on ehealthforum.com
EEG findings as described are non specific and transient minimal abnormalities which I do not think need to be worried about. MRI finding is again non specific and is not possible to come to any conclusion. Epilepsy doesnât show any abnormalities on MRI, unless it is associated with organic pathology like tumors and space occupying lesions which you fortunately do not have as it would have shown up on MRI.
It is quite possible that your episodes of nausea and fainting are unrelated to neurological status, and may well be due to some kind of alteration in blood pressure and very commonly due to food poisoning.
As you are no longer having any symptoms, I do not feel that it requires any further investigation, but it is a good idea to see your doctor for a routine examination. Thank you.