Stretch in the Deltoids

I did the Thoracic Bridge course for the first time today.  A lot of times, when I was doing different stretches, for example the inverted cat stretch (on the ball), I felt the stretch/pinch more in my deltoids than in my arm pits.  

Is this normal? Where am I supposed to be feeling the stretch/pinch?

Thanks!

Jeremy

This is you tight anterior capsule, welcome to the club! when it will be released you begin to feel the armpit. 

4 hours ago, Alessandro Mainente said:

This is you tight anterior capsule, welcome to the club! when it will be released you begin to feel the armpit. 

Thanks!