history: I'm really pumped to get my new treadmill and get to exercising.  Need to get back in shape. I'm really pumped to get my new treadmill and get to exercising Treadmills are great! I find that they're better your knees than running outside.
current: Yeah, and I'm not quite ready for running outside.  I'm really motivated though to get back in shape!
next: That's awesome to hear! We only get one body, we need to take care of it. Good luck!