Need help with diagnosis

Hello, I am new to these forums and would really appreciate any insight you might have on this issue.  My son (now 7) started having seizures when he was 3 or 4.  The first seizures he had were pretty severe - shaking of his entire body for about 30-60 seconds.  His eyes were still open and he seemed conscious during them, but he could not speak or otherwise communicate.  If he was standing, he would fall to the ground.  Our nuerologist put him on Kepra and that seemed to work for almost a year.  Then he started having night seizures (only).  They started sporadically, but became more frequent.  They were the same type of seizures he had initially - except they occurred only when he was asleep.  We switched drugs (not sure the name of the new one) and that seems to have stopped the night seizures as well.

However, now he seems to have what appears to be very mild Atonic seizures.  He has what he calls "wiggly" hands, feet or legs.  These last 10-15 seconds and there is no visual signs of any problems with his hand, foot or leg.  He simply complains that the extremity feels wiggly.  When we touch it during that time, we cannot feel anything abnormal.  If it is in his leg, he often will drop to the ground, but seems able to control his fall.  There is no evidence of a seizure on his face - droopy eyes or anything else I have read about that is associated with Atonic seizures.

Our nuergologist at first dismissed these as not being seizure related, but since the frequency has increased during the last few weeks, we just completed a 72 hour EEG scan and should have the results later this week.  Obviously the results of the scan will give us more insight, but I just wanted to reach out to the community to see of others have had similar experiences and might have some insight to share.

 Thanks for taking the time to read this and provide feedback.

 Jeff