Answer:
I am an English word with 3 consecutive double letters.
I am heavy forward, but backward I'm not. What am I?
I have thirteen hearts but no body or soul. What am I?
I am as hard as metal, yet as flimsy as glass. I shine like a star, yet I am only a rock. What am I?
If you have me, you want to share me. Once you share me, you won't have me. What am I?
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk