@Sarah unfortunately I can’t take that whilst breast feeding x
It sounds alot like postpartum ibs, try and ask your doctor for some tablets for ibs (works a dream, im also breast feeding so I couldn't have my regular meds, they've given me peppermint oil gastro resistant capsules)
Have you tried buscopan? Sometimes it takes a relaxant after the bowels are touched during a surgery they can freeze up and cause loads of pain until they start moving again x