headaches after racing

I get headaches after long bikes/runs when I am dehydrated.  Try to pre-hydrate for 3-4 days before your race or big workout and during your workout.  Also, if you are not already using an electrolyte drink, try that also.

For years I thought headaches were just apart of training/racing - I did the pre- hydrate/post- hydrate, advil on the long runs/races and more immediately afterward, but still always got them. This year I changed strategies and focused on hydrating/electrolytes  more DURING the long runs (actually all my runs now that it is hotter) and have not had any headaches following the w/o's.   I did my first HIM on July 11th and again really focused on drinking/nurtrition  - and it worked!!  Although I did take advil very early on during the run because I could feel it starting, I also drank even more and  I did not end up with the typical massive headache - actually had next to no head pain at all after.   You mention you are doing a good job of hydrating/eating POST race ... maybe taking more in during the event might work for you too?