I've definitely had stressful days at work where I don't recall any feeling of being too warm, but I find my armpits, especially on my dominate arm, has a very rancid sweat smell that's different than if I were outside on a hot day or exercising.
You may be interested to know that your sweat glands come in two distinct types: Eccrine for thermoregulation and Apocrine for the wild mess of emotions we experience.