I feel feverish but I have no fever?

I have been dealing with this for a while. I feel like I am burning up. Some times it is just a few times a day and sometimes i am fine, but for the most part I feel like I am hot. I take my temperature and it is lower that normal. I am only 27 so I do not think I am going through menopause. The heat seems to be in the trunk of my body. My face and neck and back. my extremities are cold and always have been. I have chills and goose bumps, but no fever. I have use two different thermometers and a mercury thermometer as well and I don't even reach 98.6. Help me I am freaking out!