About 1-2years ago I suffered a accident at school where a wooden heavy door (automatic closing) caught me in the right rib, a few weeks after I started suffering from extreme pain in the rib where I noticed it was higher than my left rib. A few months after I went to a&e due to extreme pain in the same rib they did a xray and said nothing seemed to be amiss however I still experience pain and sometimes I notice one rib is higher than the other.
Can I get some advice/ explain what this is.