I hope that you have no symptoms soonest. Sleep, liquids and eating healthy is the best course.

Don't count on the partial immunity. With your history of secondary infections and respiratory complications, get the vaccine. Your doctor should put you on the priority list. The headaches (especially the severity you are describing) aren't one of the common symptoms of the piggy-flu. They might indicate West Nile. Have you seen any misquitoes (sp!)?