Ozzie,
There are so many different reasons for a person to be continually hot or cold. I am in the medical field and know you can't contribute it to one thing or another.

As for what your husband said to you, I am sorry he was so hurtful. It sounds like he has his own problems that are making him unhappy and projecting those feelings onto you. It doesn't make it right, but at least know that has nothing to do with who you are. From the response posts given so far, it sounds like you are truly a wonderful, giving person. I wish you luck and good thoughts.
Anne