thanks for your query
well it seems like you are suffering from too much use of laxatives and since you have had the surgery already and still suffering from
constipation you should immediately change your diet to include food items with more fibre for easy digestion and avoiding constipation and also use the laxatives and stop the usage in a slow co ordinated manner instead of stopping it abruptly let your digestive system get used to the lack of laxatives in an orderly manner. take care