Running on empty

So tired these past few weeks! I have been running but some days are good and others not so much. I just keep plugging away. I have been swimming as cross-training and I love it. My whole body feels light and airy underwater and then I feel like jello when I finish. What a great work-out! I can almost register for the sprint triathlon that will be in July. Registration opens March 31st! I have a few friends who will be doing it too so I'm psyched. I just want to do better than I did last year and beat my own time.