My son started having episodes of blank stares and blueish lips last June. We went through Pulmonary, Cardio and Neuro and the only thing they found is that his heart is 4% larger than normal and that he had one episode of Central sleep apnea. Almost 3 now, he had a similar episode yesterday in speeach therapy but it included stuttering. His speech therapist seems to thinh that they are petit mal seizures. What do you think or suggest we do?