swimming with head out of water mostly (i.e., cocked up) 4. extensive
singing (mostly incorrectly - from
throat as opposed to the correct method.
Also, periodically when doing certain shoulder weight lifting, I feel a concentrated 'point' of sharp (not oppressive) pain in, approximately, the center of the upper rt quadrant of my back.
Also, I feel extreme tightness throughout the entire back of my neck (I actually feel something like 1/2-3/4 inch twisted wire.