I decided against racing Sunday. This past week I've been laying low due to an unrelenting stomach bug. I didn't run until Thursday and felt unusually sore afterwards with cramps in my hamstrings that made me think my electrolytes are off-balance. I rowed today and felt clammy. I'll try an easy 5k tomorrow and see how that feels. I ordered a replacement Gymboss interval timer. I lost my timer in the first minutes of the Rotterdam marathon. My coach had recommended using it for walk-run intervals. I'm looking forward to having one again. They're so useful for so many things.