This is Dr. David
I am sorry you are having lower abdominal pain radiating to your lower back.
you would benefit from a lumbar and sacral MRI scan with contrast to look for pinched nerves low down in your lumbar spine and sacrum which can cause pain.
pressure in your sacrum or sacral plexus can cause lower abdominal pain which can radiate to your lower back.
MRI scans sees nerves and disk and spinal cord much better than a CT scan
let me know if you have other questions.
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