I am reasonably fit, have been riding Sportives and similar for a few years and thought i had my nutrition reasonably well organised. recently , although did happen a few times last year , i have been suffering with quite bad stomach discomfort after the first couple of hours of relatively intense cycling. it is not quite nausea or a sickness feeling however feels like bad indegestion and that i have a 'ball' / heavy, churning feeling in my stomach. it does improve with eating and i am aware with adrenelin etc excitement i sometimes find it difficult to eat but always have breakfast although sometimes only 1 to 2 hours before the start of the event.
it really impacts on my ride and is annoying.
i have thought it could be dehydration or certain caffine containing gels reacting badly, any thoughts or similar experiences ??
I didn't find the right solution from the Internet.