Pains in the chest, ribs and back

DeAnna • Pregnancy Confirmed Sunday July 13, 2014, Due March 21, 2015 (:
I'm 33w6d and I've been having really bad pains in my chest through my ribs and back all day. Hurts to yawn, burp, take deep breathes, wipe after I go to the washroom and lean over. Anyone else have this? Could it be trapped gas?