So I've been really stressed with my quarter at school coming to an end, even to the point that caused me to have an anxiety attack. With it, I missed a period for November. I've read that stress and anxiety causes strange and abnormal periods, but for this month (Dec) my period has been really thin with bright red blood, which is kind of frightening me. Usually my periods are darker and thicker, so I'm not sure whether this is normal with my recent health issues or not... any thoughts?