Morning Workouts

So I have generally been a morning person, but never a morning exercise person. But now I have been doing this 2x/week swim class at 615 in the morning along with some bike rides on the trainer in the mornings. So I have been slowly becoming a morning exercise person.

I don't eat anything before my morning workouts so I am truly going on nothing. I have a half a can of diet mountain dew on the drive to the Y in the morning thats about it. I don't do anything other than water if I am home. I just eat after my workout.

I generally don't have any issues with swimming, or at least I don't notice anything. Today was different. Today was the first time I can remember just not having anything in the tank for a swim workout. I could tell during the first round of 200's that I just didn't have it in me today. I completed the workouts, but my times were all off.

I guess all the workouts can't be good.