I Have Been Sweating Around The Creases In My Body,

I have been sweating around the creases in my body, the armpits, under the breasts and around the leg/torso area. The sweat sometimes has a sweet smell. It is never consistent. It is usually only one area at a time and only for a day or two at a time. I was wondering what might cause these symptoms. My mother has thyroid issues and I was curious if this could be something like that.