Hair loss? Normal or abnormal ??

So i havent washed my hair in about 3-4 days (trying to give it a break from frequent washing) but after i washed it today and brushed it, this much came out... usually i never notice how much hair comes out of my brush so to actually see it is alarming.. please tell me you girls experience this because my heart just sank. Back story: i have thin hair, especially after dying/bleaching it..