Sure you're not having heart palpitations?
Pretty sure - maybe just a little un(running)fit :P
Fair enough haha, I was probably in the 190s for 5min/ks this time last year :P
Haha ahh I can imagine so! ;) hopefully 4:40/km should be cruising again after a few more runs :p
A couple of weeks ago you said 4:00/km was recovery pace ;)
Ahh and my HR was less this time around I suppose ;) maybe I'm just being weak