Tired

Before the new more-restrictive diet I am on now I would feel really tired around this time, but its much worse now.

At the moment I am feeling really tired (not sleepy though), and feel a bit like fainting or vomiting. It is a chore to stand up. I did some intense sprints outside in the cold yesterday, maybe it has something to do with that. But I just hope I feel better and my energy picks up.