My Whitney day hike is on 9/11, this is my first trip. I am still debating whether to commit to Diamox or not. I had been to Tioga pass this year and did some short hikes around the area and did not feel any AMS symptoms but it is just 10k-11k elevation.
We are doing some pre-hikes on 9/9 at Tioga pass (Mount Dana) and Acclimating at Whitney Portal/Horseshoe Meadows on 9/10. I am thinking whether I can start the Diamox prescription after Mount Dana hike on 9/9 only if I feel AMS symptoms around 12-13k elevation. Is it too late if I start the Diamox starting 9/9 night or 9/10 Morning for the Whitney hike on 9/11? I never taken Diamox before so I am worried about the side effects and also prefer to hike without it if not needed. Any prior experience or feedback is really appreciated.
Thanks
