It's caused by a sudden injury (like mine was), or overuse in a particular activity. It can be treated and it's best to do so before it becomes chronic.
Luckily they caught mine in time. But the treatment is not going to be fun. I have to get a shot into the shoulder under an ultrasound (so they can get it in the right spot). I get it on Friday. Meanwhile I have to take anti-inflammatory meds, and pain meds.
It's extremely painful. And I'm not allowed to do ANYTHING. Hopefully this shot will fix it.
Moby is one SPOILT kitty. Went to visit the other day and he is living it up. He gets brushed every day, and eats like a royal. Sleeps on her bed at night. My friend is quite smitten with him and I got the impression that she would love Moby to stay there permanently. Which is a big relief. I tell you, my cat would charm even the hardest of hearts.