Do you feel bad once you get to work? Are you up long before you leave for work? I am not a morning person and if I am just jumping out of bed and getting on bike for short commute - I eat once I get there and it has not been a problem for me. But if I am going to be up for an hour or so before I bike - I will usually eat a whole wheat bagel with cottage cheese or oatmeal before leaving because I will crash.