My temperature is 96.6, should I worry?

I know "normal" body temperature is 98.6 degrees. Mine is 96.6. My spouse is getting over the flu and I may have something more like a cold. I don't have a cough, bad chills, or high fever like he did. I am just really achey all over and congested. Should I worry? I have been taking dayquil but I am worried about such a low temperature. ER?