Left AC joint bigger than right?

[Destamoon]

I've recently noticed the bump in my left AC joint is bigger than my right and I'm wondering if this is something to be worried about? Left shoulder sometimes gets aggravated when I do heavy pressing, external rotations and lateral raises. I've googled around but couldn't really find much info. Could someone chime in?

[I Declare War]

I've got this a little bit. Well my left side gets inflamed if I bench too much for a few weeks... sure makes it feel bigger when it's sore.

Nothing to worry about if you manage your workouts and focus on stuff/volumes that don't aggravate the problem.