My hands jerk n I don't know if it's from my medication? Please help, I take primidone 250mg n it's not working.

Get diagnosed. Your jerks might represent myoclonus, and unlikely that Primidone is culprit, as it usually suppresses tremors, and focal seizures. But in some cases, older anti-epileptic drugs, especially those metabolized to barbiturates, could worsen myoclonus. Get this phenomenon diagnosed, and revise therapy as needed. Get referred to a neurologist.