Woke up this morning with a cranky shoulder that scared me. After 3 years of rehab and work to get my shoulder back together, I am very nervous about any further shoulder problems. I'm a bit overly cautious about this happening again. My left shoulder was sore when I woke up, my back was stiff (but not painful), and I'm sore in general.. so I took today off. I'll do some light restoration work, but that's about it.