I woke up this morning with a sinus headache. The weather changes bring them on and I have had to learn to accept them. Mercy prevailed this morning in that it was not as bad as it can get: I was able to move around without blinding pain. I decided to go for a morning ride since engaging the day can help for these milder headaches. In this case it did not, so my headache proved to be a companion during the whole ride. I could not know that when I left, so at the beginning of the ride hope still existed that the pain would stop. As the ride progressed, however, the hope disappeared. I went to Point of Rocks, a natural rock…