hi there I was 19 and had like nerve pain which would stay there for 2-3 seconds and go away.it felt like electric shock.over the year the pain started to stay longer and more in winter .i was 31 and because of pain , i couldn t walk or even turn my side, it was impossible to get out of bed on my own , then i went to doctor and she said it was ankylosing spondylitis(AS).the pain was more in hip. got my cortisone injection but it didn t help.she mentioned me having an extra bone growth (that might be the reason i used to feel a stabbing knife ) but after mri was done, my doctor says it is not AS.she said it was condensi illii which was due to child birth(at age of 19).. but i am still having the same problems, i m on mobic tablets that helps partially but i m curious and worried why did my doctor ruled out that extra bone growth.