Your friend's symptoms are consistent with a seizure disorder -- perhaps brought on by fatigue. A blood sugar problem, such as diabetes, is also a possible explanation for the symptoms.
Here is the deal -- No matter what the cause is for your friend's symptoms:
1.) the symptoms are very serious
2.) it is impossible for you, me, or anyone else to figure out what your friend's problem is without a doctor's examination.
The best thing you can do for your friend is to insist that he see a doctor as soon as possible. These symptoms will not get better (and will very probably get worse) without diagnosis and proper treatment.
Click above Link(s) (if any) for additional information.
Let me know if you need more input. If not, thanks for the opportunity to assist you... Please honor my efforts by Clicking the green 'Accept' button (located within this post -- above-right). Adding a bonus -- should you wish to do so -- would be warmly welcomed.
Good Luck!
Steve
__________________
Counselor /listener/collaborative problem solver. Thanks!
