Still tired, what's going on?

RUN: 6.5 miles in 55 mins (took a drier path, slightly shorter) (as if it really matters)

Woke up OK but still tired and mild headache. Still fuzzy, but looking forward to the run. It was warmer than usual for this time of year at 39F. As per usual, I overdressed with my Craft t-neck and my new Mizuno thermal pants. Keep in mind that those might work better at 30F!

I struggled in the run, just felt like the whole thing was pushed, high breathing and HR (but no HRM, why not?!). But IT said the ave was 8:23m/m and that’s a decent pace for 6.5 miles. Especially if I’ve spend the last day or two worn out.

Later at work I had a headache, still unmotivated and unfocused. I’m looking at my schedule for the weekend and wondering just how much rest I need to take to get out of this funk?

What can I change? Maybe my electrolytes are out of whack…I’m sweating a lot on the bike and today’s run but not supplementing. Maybe I’m missing some nutrient? Maybe…???