I even had a psychological thing where I felt like the treadmill was slowing down from the speed I set it at as I treaded without telling me. I couldn't quite tell whether my body was warming up and adjusting to the higher speed or the treadmill was faltering and actually going slower. I ended up checking steps per minute and the number didn't change, so it must have been psychological, but it was still weird. Regardless after about 20-30 minutes I started sweating profusely and my heart rate was good, so the actual speed isn't particularly important. It's getting that cardio in that matters. It's good to have the old friend back and today I feel much more upbeat and positive than I did yesterday, not to mention energized and creative.
This whole weird relationship with the treadmill is coming to dominate my life, and it's only been two weeks to the day since it was delivered! Hopefully it will all get sorted out and I'll be able to focus on other things and the actual life part of my...life.