JMT Day 18: The Hardest Day Yet

8/11/2018 Shepherd Pass Trail –> Guitar Lake I woke up at 5:30 and ate my breakfast. I took my time drinking my tea, but I was still on the trail by 7:00! I started heading towards Bighorn Plateau but by 7:20 I could tell something was wrong. My stomach was in knots. I stopped to…