I commute about 16km then have cereal when I get in - i've not had headaches though. Do you drink any water before or on your way in? Could be something as simple as dehydration.
@seager started
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I commute about 16km then have cereal when I get in - i've not had headaches though. Do you drink any water before or on your way in? Could be something as simple as dehydration.