Baldness Inherited From

Why am I losing my hair if my mother’s father, my father’s father, or my father were never bald?
I have always heard that men typically inherit baldness from their mother’s father; however, my mother’s father had a full head of hair, as did my father and my father’s father. My mother has a high forehead; however, she is not bald, nor is her mother, or my father’s mother. I am not adopted, either. So, why would this occur only in me? I do have a first cousin who has basically shaved his head, and I was told that his hair receded prior to his having shaved his head; however, it wasn’t quite as profound as my loss of hair.
My hair began falling out when I was around 21 or 22 years old. Now, I’m almost 33, and it is really starting to thin out. I cannot understand why, though, considering that my genetics suggest that I should have a full head of hair throughout my life.
Any possible explanations or suggestions to this hair loss?
Thanks.
Baldness can skip generations before showing up again. See if any of your grandparents have any pictures of their parents or grandparents. If no one in your bloodline is bald then you may have aquired the trait through something in the environment.
