=) | ADHD Information

Not much here.
arijfroo40179.6786921296I haven't experienced this effect from Ritalin, but withdrawal from Effexor has been known to cause a sensation people on forums have referred to as "brain shivers".  You're not withdrawing from some other med, are you?  If so, this could be the cause.  If not, then I'm not sure what's causing your side effects.

it just needs to take time for your body to get used to it!! i was on ritalin for 9 years when i was a child.  now i am on strattera which i like alot better