I can feel it

Yes, I can feel it in my bones that stress from exams is taking over once again. The first hint was yesterday night when at a not- so- good news, I immediately dropped gloomy and grumpy while knowing very well that the other person has no control over the situation. As a consequence, this person also fell silent and it is exactly at that point in time when I realized my mistake. I tried to alter my behaviour as soon as possible but I was afraid it might be too late.