I am grateful I did not give myself heatstroke on my not-well-thought out run late this morning (slept in a bit). I came in dripping sweat, and I just lay on the floor for ages, trying to cool down. I also guzzled water so fast, I was nearly choking myself. I weighed myself before & after, and I lost 5 lb. in water weight from running. I think I've finally re-hydrated. I'm really pushing water today.