+1. I could have written that exactly. I'm on track for 3,000 miles this year, ran 2,200+ last year. Have been doing 80+ miles/week recently with upcoming marathon. Ran a 50 mile ultra back in July. I've never had any "runner's high". It's not something that any of my running friends ever talk about; it's something non-runners talk about. Closest I get is also "feeling in a groove", which for me is mostly a feeling of ease I get when running a moderately fast even pace on flat route with no interruptions (like on a bike path). But it would be really stretching it to call that feeling a runner's high. There can also be a nice feeling _after_ certain runs, when they're over. This is also not a runner's high, just a pleasant feeling of being somewhat drained and relaxed, similar to the way you might feel after a massage, or after some non-running workouts. The whole "running high" terminology is geared towards making people think there's some kind of mystical thing. People like to believe things like that, but no.