I am an avid biker, and have been for several years. But lately after my longer more intense rides, i get an extremely queasy, nautious feeling for a few minutes. This always subsides, and i never throw up, but i have wondered what might cause this odd feeling. Before my rides i usually eat some granola or a power bar to get some carbs in me, and after i have an orange or banana. Any ideas?
Interesting. I don't know how to help either of you, but wanted to say that alot of times after riding (I don't get nauseous, though) I get lightheaded. I always attributed this to my equilibrium being affected while on the bike, but I'm not sure...?
Modified Davinci (single speed) and custom Gunnar Rock Tour
Without knowing the full extent of your nutritional intake, the length, duration and intensity of the ride(s) and other issues, it could be a variety of things from dehydration to caffeine withdrawals to not enough food (bonking) to air pressure to over-exposure in the sun (sun stroke/heat stroke) to the effects of smog.
I think the only time I ever got nauseated after a ride was from being somewhat dehydrated on a long ride during a hot day (40 degrees celcius and biking on tour 125KM).