Sorry to disappoint you guys...
Cruising till about the 1/2 way point, then got some really bad side stitches. The first time I had to walk for a few minutes. Then I had to slow down several times. I tried breathing in deeply through my nose and exhaling through my mouth. Didn't work. Then my stomach felt really full, as if I had been taking too much water. But I felt thirsty! Took clif blocks along the way and then I didn't want them cause I felt so full. Then around mile 17 I felt like I was lacking energy, so I took a gel. Used the bathroom but it didn't really help. Then I was sooooo thirsty crossing the bridge! I could not wait till the next water stop! I got some water there, but I was still thirsty! The entire mile on Crystal City I really wanted water! Sometimes people have water for runners even though they're not the official water stations, but this time, nothing... Finally it got there. Got some gatorade and some water. Felt better, but by then it was mile 24 already.
I really need to get the right water/nutrition combination down next time. And train better.
Thank you all for the encouragement! Now shower and food | 