What's really different this time, though, is that my stronger core muscles are making the pain a lot easier to ignore. My posture is better - I don't need to hunch up so much - so my shoulder isn't sore as much, and I'll have periods of time during the day when I don't feel the pain at all, because my abs and hips are holding everything in a comfortable place. Even overnight, I was able to lie flat on my back and sleep, and a couple of times on my front, too!
When the pain is there, it's just as bad, but it doesn't stop me doing what I need to. For example, I had a huge spasm as I climbed my stairs yesterday, and I barely stalled for it - just carried on.