Farm buildings

Out for a bike ride this morning. Rather chilly but enjoyable all the same. The same can't be said for the recovery afterwards. I thought I'd got this sussed, but I have a lot of problems with how I feel after cycling - headaches, light-headed/woozy feelings, eyes that feel weird. I suspect it's the effects of dehydration but in spite of having tried drinking lots, both before and afterwards, I don't seem able to resolve it. I don't think this used to happen when I first started cycling so I'm not quite sure what's changed. But I keep going as I enjoy the ride itself - just don't plan to do too much with the rest of the day. Frustrating all the same.