Any diagnosticians on here?
I go to the gym one day last week and my right arm is appreciably weaker than my left arm. I would estimate it at about 60% strength. The rest of the relevant facts are as follows:
1. This was an "all of a sudden" occurrence. I had been to the gym either the day before or two days before and was tip top.
2. The weakness in my right arm isn't limited to any single exercise. It's weaker all around.
3. I can tell that the problem emanates from my right shoulder. In other words, when I try to do a set of, say, dumbbell military press, I can feel that it is the right shoulder that is failing and resulting in me not being able to lift much weight with my right arm.
4. But it doesn't hurt.
5. And there was never a painful "event" that I can point to as a possible cause.
6. I did go a good bit heavier than I normally do on the bench press in the preceding gym outing.
7. It has now been a full week. My right arm is still appreciably weaker than my left, and I can still feel the failure coming from my right shoulder, and it is still completely painless even when failing.
What in the heck could have happened to my right shoulder? Instantaneous loss of strength in one arm + no pain or preceding painful event == I am clueless.