Does running on a treadmill count for nothing? I graduated earlier in the year running outdoors but have for various personal reasons lost inclanation to run outside. I bought a cheap secondhand treadmill & have started building up again but from reading many sites it appears to be seen as a duff. Am i wasting my time & effort ? I still puff & pant & struggle & end up bright red & sweaty. PLEASE dont tell me to get back outside. Not an option for personal reasons.