Laura,
Every item you described to be eatting are things that make me stuck. Especially if the chicken is breast and dry, and any type of potato.
Some veggies make me stuck and definetly I can't eat pasta!
Try going back on liquids/mushy foods for a few days to let your tummy rest and then reintroduce those foods at a later time.
It may just be that your still really swollen, and you need to take it slower.
Good luck, and do have your doctor take a look at you.