Numbness during/after an EEG

To give you a bit of back ground why I had an EEG is because I have had a persistent headache in the back of my head, dizziness, and vision changes (eyes wide open but everything goes black approx 15-30 secs, still concious).  I had my EEG this morning and when they did the part with the strobe light the right side of my body went numb and I kind of felt odd and very dizzy afterwards and also the headache worstened quite a bit.  It is now an hour later and I still have some numbness on my right side but not as bad and still dizzy with a horrible version of this headache.  The nurse who did the EEG wouldn't say what may have happened when the strobe was going on so I was hoping to find out if this could have possibly been some type of seizure?  Any ideas?  Thank you.