[jogsxyz]

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I have problems with running too. When I start to run I feel heavy and dizzy. I also have to stop after few mins to burp. And yes I do have a brake from food for at least 2 hours. But I seem to do ok with other activities. I can walk for hours and do jujutsu or aikido and not feel tired.

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Two hours isn't enough. Since you're burping, it certainly not long enough for you.
I used to run Wednesday nights with a running club at 6:30PM. Never eat after 11:30AM that day.