Port Wine Stain

My son just turned a year old and was born with a port wine stain. Hes had a rough year and his pediatrician now thinks that his port wine stain might have something to do with it. Already this year hes had bronchitis at 6 weeks old, he had a seizure at 6 months, and he currently has bronchitis. I'm not a doctor and I really have no idea what could be going on. Anyone have any input?