Constipation pains. swelling and numbing left side stomach, back, hip, left leg, moving to right leg. mri clear.pain receptor prob?

Constipation pain: MRI of the spine or abdomen? Would consider testing for H pylori -a bacteria that can cause gastritis, if the pain is upper abdomen, Also consider colonoscopy to check for any colon lesions. Would also check for ovarian/uterine lesions with transvaginal ultrasound and possibly renal (kidney) issues with ultrasound or abdominal /plevic CT which could also check the pancreas. f/u/ w/ doc