i think i have figured this out

I am 100% sure that when I fell down the stairs at our last home about 17 years ago I broke my coaxxy bone tail bone, then when in popped while digging weeds in 2003 and went to the chyropractor something went wrong ...I have had issue with sitting everydince then..I am not sure what kind of doctor to see I do have a appointment with my pcp tomarrow and a proctologist on the 21st and a spine center on the 31st I may be cacelling the spine specialist not sure going to talk with my pcp first...I really really think this is my answer...maybe since I have lost 70 lbs that bone is pokeing out further when I sit and that's why there is so much more pain ...