That's a lot of running. You've probably learned from experience regarding hydration and electrolytes. I've run marathons with little water (crazy, don't do it), with water only, and with Gatorade and it really is a night&day difference with the Gatorade. If you haven't already, you should probably get yourself familiar with the chemistry involved in running: steady glucose levels needed for the brain, the stress on the liver in converting ammonia to urea, and the strain on the heart and kidneys. If you go out for a long run and come back smelling like ammonia, that's a good sign you're overtaxing your liver and that can start effecting your brain, with confusion, anger, blacking out and worse. I've seen people like this towards the end of a marathon when their bodies just can't handle anymore running that day.
All I'm saying is just double check your running habit, that it stays a positive thing for you. I know how much more relaxed I was when I was running regular and I know how addictive it can be.