Disgusting

I’m a big, fat, slob.
In my head, I’m just as healthy as ever. I could probably go run 100km and be fine. Why wouldn’t I be?
But I went out for a run yesterday, planning to do 30km. (I need to get the distance up.) The first half went okay, but I did find I had trouble with the hills and needed to walk parts of them. On the way back though it got worse and worse. Eventually I was walking even the flat parts. I was out of it.
This scares me. A lot.
So, since I’m a disgusting slob I went out and ate lunch (at 6:00 pm) at McDonald’s. Seemed appropriate.
Now, the hope I’m going to cling to is that the reason I did so poorly was that I was running by myself. Usually on the long distances, I’m with friends who slow me down to a reasonable pace. This time I was going at a faster speed, and maybe that burnt out too much energy too soon.