Lots of dudes start lifting because they don't like "X-Bodypart." Lots of guys worry specifically about their chests. Many old-school lifts and routines, like Pull-Overs and 20-Rep Breathing Squats, were designed to "expand the chest."
Even Arnold didn't like the way his "pecs disappeared" when he lifted his arms. So he did lots of work to build a huge chest.
You're not badly deformed or anything. You've just got years of work to do.