Hi, sorry for the mishap. I don't know what type of surgery you had? & how much time has passed? If it is a major abdominal surgery
then it will take some time to heal. Along with iron tablets you should take healthy balanced diet and I hope your doctor must have given you some pain killers to ease your discomfort. If you have any concern you can always go for an ultrasound
to make sure all is fine inside. Take care.