A weird day

I went to school. No parking spaces again so had to park way up front. Walked all the way to the bay side in these new Converse shoes I have. They moved the class to back up front. By the time I got to the front I already had two big blisters on my heels.

I came home after a short class and took a nap since I got up really super early. After an hour, Blitz wakes me up nudging me all over and making this solid, high pitched keening noise. Donner was now freaking out and I had no clue what was wrong with him. The sound was similar to a table saw and no breaths in between. I've never heard anything like it. After a minute or so I calmed him down but he has no scratches or cuts and in all my life I've never heard a noise like that ever.

Any ideas anyone?