You are worried about your serratus and rib cage.
You are worried about you upper traps.
You are worried about your sleep. Heck, you are worried about the definition of breakfast.
You are worried about putting any fat on while growing (notice I did not say bulk).
I didn't even touch the test question.
You need to stop worrying about useless shit and start to grow. Look at the big picture and stop worrying about small things.
Get on a good program for your goals, eat to grow, get some sleep.
You are picking yourself apart and all you see is your own perception of not big enough, but I don't want to get fat mentality.