I have come to Anvil, home of the mages guild hall of Restoration. I had hoped they might be able to tell me why I felt so strange. There were of no use. However, in the Anvil chapel a woman told me I should go to the Arcane University in the Imperial City and speak with Raminus Polus.
She told me why I feel as I do.
She told me that I am a vampire.
It makes sense - why I don't need to eat or sleep, why I feel so weak in the day, why the snow felt warm, why I crave the night and the darkness.
I will go to the University to seek a cure. I shall leave tonight when I am strong. In the hours until then I will see what there is to occupy me in Anvil.