My cuzin hes only 17 just turn. Hes been just having uncontrolable shaking but its not like it happens always it tends to happen once every month if that, doctors cant seem to tell anyone what is causing it or what hes got. If anyone knows anything or has anything to say plz help me out and reply thanks in advance.

Hes had this for a year now.
Shaking starts allover his body, some times its not as bad as other times. Sometimes he can walk sometimes he cant.
He could be sleeping and would have no knowledge of himself shaking until someone wakes him up or he wakes up.
He cant feel that hes shaking other than the knowledge of knowing he is.
He cant stop the shaking. I try to do everything to calm him down and help him to get his mind off of whats happening which helps.
He sometimes has stomache aches that last the the day to three days.
He also has diabetes but is not on insulin.
Family history, we have 2 ppl who have had cancer the last two years. Colon and hodgkins lymp. Both are successful.
He also has alot of built up emotions in side due to a rough divorce and some family problems.
He spent alot of time in front of the computer and tv and says he doesnt get much sleep.
If it makes a difference we live in warwick rhode island usa

i mite have gone and given alot of useless information but anything to help anyone give there oppinion