Starting temp 75, DP 72; ending temp 81, DP 73.
Parked at Peirce Mill, and ran down towards P St and back to Peirce Mill. Refilled water bottle and took half an expresso GU, then ran up to the MD line and back.
This run was awful. Despite my best efforts, I got massively dehydrated and my hands and feet started cramping. What was intended to be a cautious progressive run ended up being a shuffle, and if I could have shut it down early, I would have. Most water fountains in Rock Creek weren't working - I ended up going with a bathroom a bit north of Military road - once I got water there, things were slightly better. This still sucked, though.
Breakfast was rice, hemp powder, lemonade and berry GUs - sat well.
Breathing was advair 250/50 and Qvar - breathing wasn't great, but I think it was humidity, not asthma.