Yeah, I know what you mean. I look like a beer keg on stilts and have been that way since highschool, but hey that's who I am. It does cause awkward looking proportions though... Especially difficult when shopping for the right clothing sizes.
I went into the army at 5ft 9in with a 44in chest weighing 170. I never wore my class A properly (In my view anyways) as I was short/large for the tailors (they could never seem to get the arm length right or fit the neck), and looked like a cheap mafia thug.

Years later I tried on a 48 short suit for a formal event and left depressed. Called My friend and he said it was cool to go semi-formal, because that's who I am.

My pecs are really hard to develop for some reason. I've been benching heavy for a long time and still no significant change.

It's a tough battle with genetics. You'll eventually find peace with yourself being confident and fit.