W2D2 later today but W2D1 was the first time that the air was cold and I seriously struggled with my breathing. It was worse towards the later jogs. I get maybe half way into the 90 seconds and my lungs hurt. I am not asthmatic and I am unfit and a bit overweight but not enough to cause this.
Any advice? I was fine when the weather was warmer on week 1 shorter runs. Unfortunately I can't use a treadmill