I'm 13 years old, almost 14, and I've recently noticed that my left lower ribs are bigger than my right side. I haven't really done anything, I just play volleyball and laugh a lot, but just recently it started feeling very uncomfortable. It doesn't hurt too much, maybe like a 2/10, but the comfortableness is a 1/10. It feels like someone's hand is wiggling around in my lower left ribs and it bugs me. I did some research and i think i have "slipping rib syndrome" but it doesn't hurt too bad. I don't know what I should do. I went to a doctor for something else and asked him to check my rib, but he looked at my back and just cracked it, saying my vertebrae were out of line, and telling me to heat it up, even though my back, or spine isn't the issue. I looked up pictures of slipping rib syndrome and they looked exactly like mine. Anyone have any ideas on what i should do?? Thank you so much!!