Mine isn't painful tho.. it just feels like somethin is tearing. Idk what it is!!!
Sometimes if i stretch my arms or get up to fast out of bed i will get a bad pain too. I hope mine is just ligament pains.
I get a sharp pain under my my ribs on my ribs sometimes and it feels like something is caught there. My drs don't know what it is but think it's just a muscle/ligament thing.
& it only happens if I stretch my arm to get somethin or move/sit a certain way.