You mean the absolute fuckwaffel, I presume. The fuckwaffel is located near the heart and makes you feel like something's wrong with your heart every other day
Me too. Train yourself to keep your shoulders back and down. While you're doing that point your chin forward and then bring it back into your neck keeping your head straight. If you look like an idiot doing the chicken walk, you're probably doing it right.
So it's not just me? Sometimes my body decides that I must constantly keep my face pointed down and to the side for a few days, and these muscles are the enforcers.