Why would it be that my gall bladder is hurting after my chiropractor did a digestive exam?

Colic: Gallbladders usually hurt when the gallbladder contracts on a gallstone/sludge that is too big to pass out of the gallbladder into the bile duct. The gallbladder can become infected + the pain may be assoc with fevers, vomiting etc. Pancreatitis can be another complication. Not sure what a "digestive exam" is but i doubt it had any effect on your gallbladdder unless it included a high fat meal.

Gall bladder: Inflammation of gall bladder such as in gall stones or in anorexia nervosa. Should be differentiated from liver disease, peptic ulcer, pancreatitis, intestinal obstruction, hiatus hernia, colitis, kidney stones, appendicitis. Your doctor can run thorough workup & give advise. Treating the cause is a way to bring relief.