I get chest pains headaches an random pains in other places what could this be? Could it be serious or life threatining

Yes. Chest pains which are associated with diffuse body pains are usually not life threatening, but chest pains should nevertheless be evaluated by an appropriate treating provider precisely to rule out life threatening conditions as well as for treatment of the diagnosed condition.
Doubtful. When one hurts multiple places this is low likelihood for cardiac disease specifically. However caution is advised. If one has multiple risk factors, one should get evaluated by a physician.