Feeling crap

I did not run today. I was feeling awful. My head was pounding, I felt nautious and I was SO cold. So I took the day off of jogging. I felt a bit better after work, so I did 3 min on eliptical, 2 reps of 25 *sit ups* with the Ab swing
http://www.ehow.com/how_7191979_ab-swing-instructions.html
Then I took a 30 min walk with the dog.