So I've been running for about 6 months now. My long slow runs are done at around 6.40min/km and my heart rate sits around 140. I did a 16km on Monday which was the longest and hardest run I've done to date, and managed to keep my heart rate in zone 2 with ease.
Yesterday I did some light strength training on my legs, and then today I went out and did 8km with a friend. Granted it was slightly windy but my heart rate was up at 170-190 at times unless I dropped my pace right down..is this normal behaviour if I am slightly under recovered? We were talking as we were running and didn't feel tired? I didn't do my usual slow warm up also - could this also be the culprit?
Being an inexperienced runner I don't know if this is normal or not?