Ok, so that may be a little dramatic but tonight's run included a horrendous experience.
Picked a route that included a new hill, always a challenge to cycle up so thought I'd try running it. Being a short run I stepped up the pace and it was going so well, but just as I approached the start of the ascent I had this overwhelming pain appear from nowhere across my chest, and left arm. At first I just thought "oh no, a stitch", but it just continued to get worse.
I slowed right down, got my hands on my head, and took in as much oxygen as I could.
It soon went away and I was back to my usual form and got up the hill without any problems, but for those few minutes I did start to think the worse but I guess it was just a stitch afterall.
Still, that's another week done. Here's hoping Saturday's Parkrun is a little less painful.