You note constant back pain, change in bowel habits. Gall bladder surgery and neck surgery was performed in the past.
Regarding the change in character of the stools - there are a variety of reasons, including anatomic abnormalities (i.e. strictures or masses), malabsorption, irritable bowel syndrome or inflammation of the colon.
Before attributing the symptoms to irritable bowel, an endoscopy - either flexible sigmoidoscopy or colonoscopy would be the most reasonable next step to comprehensively evaluate the bowels.
If negative, you may want to consider tests for malabsorption, including a fecal fat test and test for celiac disease - both of which may change the character of the stool.
It would certainly be reasonable to discuss these symptoms with your personal physician. A referral to a gastroenterologist would also be a reasonable option.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
I REALIZED AFTER SENDING THIS THAT IT SOUNDED AS IF IT WERE A JOKE. IT ISN'T. IT IS VERY REAL AND I WOULD APPRECIATE ANY ASSISTANCE. THANKS