what does it mean when you don't like it when people act happy, look happy

that really makes me angry sometimes, especially if i am having a tense/frustrating day...then i see people online, on tv, in public happy, grinning and laughing or carefree looking - it really makes me angry, and i clenched my teeth, because i want them to feel how i feel, so i can feel better..

i do have a personality disorder, could this have anything to do with my personality disorder? and how can i fight my mindset? and think differently?