How Much Exercise Is Too Much Exercise? 

Great video, thank u.

I'm 22, I weigh 56kg I have a good muscle structure not too big obviously, but I do push-ups and some other intense exercises, however my main preferred exercise method is running, I run 10km a day and about 40 to 50 km a week, and I have a healthy diet which doesn't include sugar, and lately i'v been trying to increase my running distance, I gradually started adding 1km per session, and yesterday I ran for 13.2 km (1h25mn of running non-stop & burned 729kca) and as always I ate my post workout meal. It didn't feel like I was overdoing it, I felt energized and I even wanted to do more, today however I woke up feeling a bit drowsy and a slight fiever, if there is anyone experienced in this and could tell me if I'm doing it wrong or if it doesn't even have anything to do with it, which by the way is what I think to be the case, as I ran in a t-shirt and it was a bit chilling and I usually run with a hoodie On, Thank u for reading this.