I don't exercise for 2 hrs but I do exercise on an empty stomach. I hate the full bloated feeling that I get when I try to workout after eating.
If I have to work out in the evening I usually wait an hour or two after eating but I feel best when I work out as soon as I send hubby off to work in the morning. I have usually had a half glass of water and finish it during my workout. That is how I feel the best.