Long ride problem

[BleeckerSt_Girl]

Just one little thing....I used to get a headache on my bike from the sunglasses I was wearing. Something about how the lenses curved, I think. As soon as i took off those glasses, my headache faded away. Now I wear better sunglasses and don't get headaches. Just something to check out.

[mtkitchn]

When you say "fueled", do you mean electrolytes too? And do you stop at all? Sometimes a couple minute stop to stretch makes all the difference. Have you been riding with others? That helps. I get funky after a few hours when I'm riding alone.
Headaches often come with dehydration or lack of food, but you say you're well hydrated. How many calories are you consuming per hour? At least 250-300?

[VeloVT]

Hmmmm.... how much are you drinking? You say you're well hydrated, but this sounds in part like it **could** be dehydration... and low blood sugar.

Edit:
Also, have you been training at this level for a long time (over a year), or have you ramped up training pretty quickly? I've never read anything about this, but in my experience running at least, your body gets much better and more efficient at regulating glucose as you train, but it takes a while (several months) training at a consistently high intensity for this to happen. I really noticed this last year when I was training for a marathon, and I'd go for runs or rides with my boyfriend, who was in decent shape but not "training", and he'd get really low blood sugary (that is, not just sore, tired, etc but spacey and lightheaded) far before I would, and he also wasn't very good about realizing that it was happening, until I called his attention to it. For quite a while I had to remind him every so often to have some calories, so we could prevent any catastrophies (he actually had a crash that was basically due to inattention/spaciness due to low blood sugar, so I became maybe a little hyper-vigilant about it). But the thing was, being less well trained at that point, he was BOTH not able to go as far on the same amount of fuel AND not as aware of the fluctuations of his blood sugar/energy level as I was, being relatively well trained at that point (though not now, unfortunately!).

I don't know if this applies for you in any way, but I thought I'd share just in case...

[rij73]

For me, I've discovered that my head must swell while I ride. I was suffering from headaches on long rides. One day I thought to feel for the tightness of my helmet. It was significantly tighter after 3 hours on the bike than it had been at first! When I loosened it, the headache went away! Hasn't been a problem since.

DH gets headaches if he doesn't eat enough. So, keep up the experimenting with food. Starting out with some protein and fat before the ride will give you the energy you are going to need late in the ride. (Cause it takes longer to digest).

[velogirl]

don't laugh, but are you a coffee drinker? if so, do you consume the same amount of caffeine when you ride as you would on days you don't ride? I had a client who would suffer caffeine withdrawal symptoms after 3-4 hours on the bike. we added in some caffeine and all was good.

btw, I'm also doing Cycle Oregon. maybe we'll meet among the 2,000-odd cyclists?

Lorri