How to put this... I got a stitch after the first running section of W1R1 and spent the second half of the session wondering if I was going to puke or keel over and die.
I was veering left and right on the path and fighting not to fall off the kerb when I was running next to the road with stars in my eyes in the last couple of running sections. My chest was hurting, my heart pounding like I have never experienced before.
Now, I am a 31 year old man, 6ft 3 and 11st with no history of heart problems, even had an ECG last year which said my heart was fine, but do I need to worry about this or am I just a classic example of an unfit office-worker who needs to get into shape?