Can Metal Plate In Head Cause Dizziness, Headache And Memory Loss?

Hi, may I answer your health queries right now ? Please type your query here...I've been living with a metal plate in my head since I was 12 I'm now 29 I suffer dizzy spells I've even passed ou once I also suffer headaches and short memory lost I wanna know if his is a result of having the plate in my head due to getting hit by a car which also caused me obe in a coma for 45 minutes lease I really need o know and also if it shortens my life