Tall People

I get nervous and scared when a person who is taller than I is near. Sometimes I get frustrated, because I want to be tall myself. I feel bad though, because even though many of the tall people that try to start a conversation with me seem like friendly people, I become more silent than I usually am and I act coldly towards them. I feel like hiding when they stand next to me, or running away from them when they come towards me or if I see them. There are plenty of people who are taller than me in the area I live in, and I become stiff and silent with them. If I was taller, would I be afraid of people shorter than me?