Did week 3 run 2.
And following advise from Gary, I reduced my speed from 7.5 KM/H to 7 KM/H - advantage of treadmill.
And reducing the speed by just 0.5 KM/H made a lot of difference. I didn't feel as if my heart was ready to explode out of my chest. Didn't feel sick or needing the loo.
I am actually looking forward to W3R3 now.
Thanks again Gary!