So this might be one of the dumbest questions to grace the forum, but I'd like some additional thoughts.

I'm a regular blood donor and I scheduled an appointment to donate this Friday even though I'll be particpating in my first metric century this Sunday (I'm pretty excited and nervous! ). The woman I spoke with assured me that I should be fine provided I drink plenty of fluids before the donation and afterwards, and that it's only recommended not to lift heavy things...

What do you all think, should I reschedule for after the ride on Sunday? I'm starting to have some second thoughts and would appreciate any opinions out there.

Thanks!