Long, long, hot ride to here. Beautiful rolling countryside punctuated by the occasional degustation of the pruneaux d'Agen. Waited for the hostel to open, then on foot to explore the town. While in a sort of indoor mini-mall, I suddenly felt dizzy and rapid heartbeat. I sat on a bench in this mall for a while and then things calmed down. I learned later that I could have stopped it by pressing hard on one of the arteries in my neck. Crashed at the hostel after that.