I definitely do. My dumb-dumb brain doesn't really get the whole neurotransmitter thing, but as stingy as it is with dopamine and nor-adrenaline, as generous it is with endorphins. Oh, you're 5 minutes into your cardio warm-up of your hour long work-out? Enjoy this heap of endorphins for the next 2 hours. I feel good, it's extremely meditative because thoughts are just on pause, I love getting stronger and more in shape, and I always go in the sauna at the end of my work-out which is a huge motivator before going and makes it all even better at the end. I always walk out of the gym completely zen and satisfied.

If you don't get such an easy endorphin rush, I don't know what to do. I can imagine it would suck in that case.