I would start calling family members as soon as possbile...this doesn't sound good.
So, are you stretching? and what's your grip width? What kind of bench are you using? Picnic table bench? Park bench?
I've noticed that if I use too wide of a grip, my shoulders will let me know immediately. This is why I usually don't bother with BB press these days. DB press movements seem to give the option to adjust laterally as required....for me anyway.