Week 7 fatigue, what's going on?

[u/inevitable_zest]

So as the title says, I've just finished week 7. But the last few runs I've really struggled more than before. I was finding running 20 minutes absolutely fine, my breathing was good and my legs weren't tired at all. I even went off the plan abit and built up to 25 mins gradually over a few weeks and felt great.

But now I start fine, then get to about 50-60% through the run and suddenly feel very fatigued. And my legs feel very tired. I'm not going any faster than I have been previously, in fact my pace is slightly slower. I still mange to finish the runs though. I even took a week off last week but it didn't seem to help.

What could be going on? I don't really understand why I'm suddenly struggling.

[u/Ok-Terrific2000]

How are you feeling all around? This is a busy time of year, are you stressed? Or it could be anything like hydration, nutrition, hormones, change in weather/season.

Assuming those are all your normal, maybe go back to a level that is challenging but comfortable for a couple weeks then look to push harder again and see how you go.

[u/inevitable_zest → u/Ok-Terrific2000]

Thanks for the advice! I might try easing off slightly. I'm not particularly stressed. Honestly it could be sleep/hydration/nutrition thing.