Question - in my little 30 minute very windy ride Saturday afternoon, my stomach became upset. Not to the point of having to pull over, but I did become nauseous and it took some time for that to dissipate.

My heart rate DID reach almost 180 in fighting the wind, and it pretty much stayed there for much of that 30 minute ride - could this have caused that? This is my assumption - my normal average HR on a ride without strong wind is around 125 - my average HR for THAT ride was 145... Interestingly enough my legs weren't burning or anything from the effort of pedaling in that headwind, but I was so focused on staying vertical that I may not have noticed it.