wbtravis: because that's the best drug to minimize the chance of AMS. Althought if I can make a tour before whitney to mount dana I will definitely see if I need it or not.
Bulldog34: yeah, I think mt. dana would be perfect. If I feel the bad there, I will prepare with diamox. If it works out fine, I will still bring ibuprofen with me, because it might be enough to help a bit on the day of the hike. We'd really just spend hours at lone pine lake the day before and move around a bit. Nothing serious.