OK, this is what I have heard and read (including here) over the past weeks:
I could have tendinosis, a partial tear, a full tear, or partial rupture. Exercises may help by strengthening the muscles to allow the tendon to heal; or they may hinder and impair healing. Inflammation is good, and it is bad. Massage is good, or not good.
I'll clarify things a little -- I don't expect you to diagnose it for me.
-- The primary pain site (about 4 inches below the top of my shoulder) has not improved at all since day 1; in fact it is a little worse, and I think the type of pain has gone from dull to sharp/tearing at times.
-- The primary pain site almost never hurts at rest, but occasionally throbs at rest.
-- It hurts a little when I sleep on it; I am not supposed to sleep on it but if I roll onto it in my sleep, I think it wakes me up after an unknown period of time, though the pain is not very bad.
-- I also now have noticeable new pain in the front of the shoulder.
-- Starting a couple of weeks ago, I've noticed some popping in the shoulder when I sometimes move it
-- Deep massage is very painful
-- By "A LOT" of pain, I mean when when I lift my arm to the side or a couple of other directions, it is very painful. When at rest, I feel only minor throbs in different places of the upper arm and shoulder.
Hope this helps.