I can't seem to stomach anything when riding. I ride for say an hour, sipping water along the way. If I go much further, I start running low on energy, so I have tried to stop and eat something like an energy bar, fruit, banana, even bread. I have tried everything I can think of, but if I try to get back on, my stomach gets so upset after riding for a bit, that I start burping up what I ate, and feel like I want to vomit. It feels like it is getting bloated and wants to blow up, even if all I ate was a small piece of energy bar or the like. I can't seem to eat while on long rides in order to keep up my energy. About the only thing that stays with me is if I eat a good sized steak and potato, a couple hours before my ride. That tends to give me enough long term juice, but even that runs down after a while.
I can sip on gatorade, etc, but that only goes so far. Not sure what to do. I get to a point where I can't climb hills anymore.
How do you keep up your energy on long rides?