I was on 5mg of diazepam i've been off completly for 5 days today and been anxious and insomniac . could this dose withdrawal cause death or seizure?

Not likely: Unless you are predisposed to seizure this is a low dose that should not result in seizure but if you feel worsening symptoms go to doctor right away.

Not so likely..: At this point, the risk of becoming dependent on this addictive class of meds is clear; if you are taking this meds without your dr approval. In most cases, such dose and period of time do not constitute a high risk of seizures or death for withdrawal really. Try to avoid dependency on benzodiazepines.

Mild withdrawal: You can certainly have mild withdrawal symptoms from valium 5mg, if you had been taking it regularly. It's long-acting -- meaning it will take longer to completely eliminate from your body than other, shorter-acting benzos would take. Withdrawal symptoms start later & may last longer too. Seizures & death are not likely from this dose, though. Be safe -- tell your doctor about this.