Answer:
I am a seed with three letters in my name. Take away the last two and I still sound the same.
I am constantly overlooked by everyone but everyone has me. What am I?
I start with an E end with an E and have a letter in me.
I am heavy forward but backward I am not. What am I?
I go inside boots and outside shoes.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.