Gallbladder? Chiropractor Says Possibly Gallbladder After Months Of Treating It As A Rib Tip Out In My Back. Any Info Would Be Greatly Appreciated.

I have been having severe right shoulder blade pain that sometimes goes into my chest. I went to ER during severe attack, they originally thought pulmonary embolism but thank got it was not. I also have been having right side abdominal pain under ribcage like someone is pinching me, feeling overly full after eating, some nausea but no vomiting. Most of the symptoms are pretty constant. Help?