My first day off

Yesterday I took body combat. Today I was scheduled for a 3 mile run. I decided to  wait until tomorrow - I've been feeling not so good all day. I feel a bit feverish but when I take my temperature, it is normal. I'm afraid if I go for a run, I'll make myself feel worse. Maybe my body is just rebelling over 8 straight days of hard exercise and needs the day off anyway....