Sweating a lot after being lazy for 2 days?

I have been under stress last week. Wanted to take the weekend to relax and be lazy, then the weather decided to be ultra damp and humid, activating my arthritis, thus making me even more lazy. I stayed in bed for 2 days other then to shower yesterday and today. Then when I went out I was sweating profusely all day. Was this because there was some kind of a build up and is this a proven thing?