I find it weird though that both ur hair falled out in clumps? Can you describe what you mean by this? By clumps sounds a bit AA than male pattern baldness? Til this day I've never "noticed" my hairloss in the way that I see hair falling out. I never wake up with hair on my pillow and when showering I only lose normal amounts.
My pillow used to be full of hair. In fact, my mother once pointed out the pillow full of hair and said it's because of my daily hair washing routine. That's how I discovered that I was losing my hair. I was quite a studious in 8th grade and I remember my books, notes, desk and couch more hairier than I'm now. And also the fellow students in those days who sat behind me in classrooms often complained about my hair falling on their desks. I had longish hair in those days