Hi lindkaye,
I have the opposite problem. I don't sweat. I think my sweat glands must be in the off position. It is so hard when I get heated, by the weather or movement. I can't cool off. I can't get rid of the toxins that build up. It is good to sweat, healthy, IMO.
I guess the opposite is a problem too. When you sweat too much you might lose too many electrolytes. That can weaken you. I have to constantly sit still, cool off or rub cold water over my body like when trying to reduce a fever. I get red and hot and I also get the burning in many parts of my body. I may even retain too much fluid, but glad much is gone in the ladies room.
I am completely dry, even in the sun, but get very ill feeling. So one end of the spectrum is just as bad as the other end. I would think a cooling vest would help both of us. Good luck finding the answer.